Display panel and display device

Abstract

The application relates to a display panel and a display device, comprising a substrate, a reflection layer comprising a first reflection part located in a main display area and a second reflection part located in a winding area, the area ratio of the orthographic projection of the first reflection part in a unit area is less than or greater than the area ratio of the orthographic projection of the second reflection part in a unit area along the thickness direction of the display panel, a light emitting device layer located on the side of the reflection layer away from the substrate, the light emitting device layer comprising a plurality of spaced light emitting elements, the light emitting element comprising a first electrode, a light emitting material layer and a second electrode arranged in sequence along the thickness direction, the light emitting device layer comprising a shielding layer, the shielding layer being at least partially multiplexed as the first electrode, and along the thickness direction, the orthographic projection of the shielding layer covers the orthographic projection of the second reflection part. The display panel provided by the application can improve the screen-off display effect.

Description

Technical Field

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

[0002] With the development of display technology, existing display panels are gradually being updated and replaced, while market demands for display panels are also increasing. To improve the display effect and increase the screen-to-body ratio, some display panels place functional components such as image acquisition modules below the display screen. To accommodate the light transmittance and other parameter requirements of the areas housing these components, the wiring connecting them typically requires special winding techniques. Because the wiring configuration in the winding area differs from that in the ordinary display area, there is a difference in reflectivity, which can lead to uneven display when the screen is off.

[0003] Therefore, there is an urgent need for a display panel and corresponding display device that can improve the problem of poor always-on display. Summary of the Invention

[0004] This application provides a display panel and a display device, wherein the display panel can improve the problem of poor display when the screen is off.

[0005] In a first aspect, according to an embodiment of this application, a display panel is provided. The display area of ​​the display panel includes a main display area and a winding area. The display panel includes: a substrate; a reflective layer including a first reflective portion located in the main display area and a second reflective portion located in the winding area, the second reflective portion being provided with a break opening; a light-emitting device layer located on the side of the reflective layer away from the substrate, the light-emitting device layer including a plurality of light-emitting elements spaced apart, the light-emitting elements including a first electrode, a light-emitting material layer and a second electrode arranged sequentially along the thickness direction, the light-emitting device layer including a shielding layer, the shielding layer being at least partially reused as the first electrode, and the orthographic projection of the shielding layer covering the orthographic projection of the break opening along the thickness direction.

[0006] According to one aspect of the embodiments of this application, the reflective layer includes a first metal layer, an insulating layer, and a second metal layer disposed sequentially along the thickness direction, and the break is disposed through at least one of the first metal layer and the second metal layer along the thickness direction.

[0007] According to one aspect of the embodiments of this application, the second reflective portion further includes a via disposed through the insulating layer along the thickness direction, and the first metal layer and the second metal layer are electrically connected through the via.

[0008] According to one aspect of the embodiments of this application, the shielding layer includes a main shielding portion and an auxiliary shielding portion, wherein the main shielding portion is reused as a first electrode, and the auxiliary shielding portion is disposed between adjacent main shielding portions.

[0009] According to one aspect of the embodiments of this application, the orthographic projection of the main blocking portion in the thickness direction covers the orthographic projection of the second reflecting portion in the thickness direction.

[0010] According to one aspect of the embodiments of this application, the minimum distance between the auxiliary shielding part and the main shielding part is greater than or equal to 3μm.

[0011] According to one aspect of the embodiments of this application, the display panel further includes a touch layer disposed on the side of the light-emitting device layer away from the reflective layer. The touch layer includes a plurality of touch traces, and along the thickness direction, the orthographic projection of the touch traces is at least partially offset from the orthographic projection of the first electrode.

[0012] According to one aspect of the embodiments of this application, the light-emitting device layer includes a filling portion that fills between adjacent light-emitting units, and the filling portion is made of a black light-absorbing material; or, at least one of the side surface of the filling portion away from the substrate and the side surface of the filling portion close to the substrate is provided with a light-absorbing film, and the light-absorbing film is made of a black light-absorbing material.

[0013] According to one aspect of the embodiments of this application, the display panel further includes a polarizer disposed on the side of the light-emitting device layer away from the substrate.

[0014] According to one aspect of the embodiments of this application, the display panel further includes a light filter layer, the light filter layer including a light-shielding portion and a plurality of color filters spaced apart in the light-shielding portion, wherein the orthographic projection of the color filters covers the orthographic projection of the light-emitting unit along the thickness direction.

[0015] According to one aspect of an embodiment of this application, a first electrode is disposed between a light-emitting material layer and a reflective layer.

[0016] Secondly, according to embodiments of this application, a display device is provided, including the display panel in any embodiment of the first aspect.

[0017] The display panel provided in this application embodiment has a main display area and a winding area. The first reflective part and the second reflective part located in the two areas have different reflective structures due to the presence of the winding structure. At the same time, a shielding layer is provided in the light-emitting device layer of the display panel. The shielding layer can be formed at least partially by multiplexing the electrodes in the light-emitting device layer. The orthographic projection of the shielding layer in the thickness direction covers the aforementioned second reflective part, thereby forming a shield and preventing the reflection of ambient light by the second reflective part from causing uneven display of the display panel in the screen-off state, thus improving the screen-off reflection uniformity of the display panel. Attached Figure Description

[0018] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0019] Figure 1This is a schematic diagram of the structure of a display panel provided in one embodiment of this application; Figure 2 yes Figure 1 A sectional view at point A-A'; Figure 3 yes Figure 1 Another sectional view at point A-A'; Figure 4 yes Figure 1 Another sectional view at point A-A'; Figure 5 yes Figure 1 Another sectional view at point A-A'; Figure 6 yes Figure 1 Another sectional view at point A-A'; Figure 7 This is a schematic diagram of the structure of a display device provided in one embodiment of this application.

[0020] in: 100 - Display panel; 200 - Display device; 101 - Display area; 102 - Main display area; 103 - Winding area; 10 - Substrate; 20 - Reflective layer; 30 - Light-emitting device layer; 40 - Touch layer; 50 - Polarizer; 60 - Filter layer; 21-First reflective part; 22-Second reflective part; 23-First metal layer; 24-Insulating layer; 25-Second metal layer; 31-Light-emitting unit; 32-Shielding layer; 33-Filling part; 41-Touch wiring; 61-Light-shielding part; 62-Color filter; 221 - Opening; 222 - Via; 311 - First electrode; 312 - Light-emitting material layer; 313 - Second electrode; 321 - Main shielding part; 322 - Auxiliary shielding part; X - Thickness direction.

[0021] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0022] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0024] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0025] The features and exemplary embodiments of various aspects of this application will now be described in detail. Furthermore, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0026] In existing display panels, to improve screen-to-body ratio and achieve better display effects, some display panels adopt an under-display camera setup, placing the image acquisition module below the screen to achieve full-screen display. However, the image acquisition module needs to capture images from the light-emitting side of the display panel during operation. To ensure the screen's light transmittance during image acquisition, the portion of the screen above the image acquisition module typically needs to place the corresponding wiring and display control components such as thin-film transistors in the peripheral area, i.e., offset from the area where the image acquisition module is located. In this case, the wiring connecting the aforementioned control components to the pixels needs to be wound, and the film structure in the wound area therefore differs somewhat from that in the ordinary display area.

[0027] Based on this, the applicant discovered that the display area in the display panel can include a conventional main display area and a winding area corresponding to components such as the image acquisition module under the screen. The differences between the film structure in the winding area and the main display area are usually in the placement of the metal traces and the connection vias that penetrate the insulating layer along the thickness direction. These differences in metal components cause a significant difference between the reflection effect of the winding area on ambient light and the reflection effect of the main display area. As a result, patches corresponding to the winding area appear on the display panel when the screen is off, causing display defects.

[0028] To address the aforementioned issues, this application provides a display panel and a corresponding display device. The display panel has a shielding layer in its light-emitting device layer. This shielding layer shields areas with different reflectivities caused by the underlying wiring. Furthermore, the shielding layer can be at least partially reused as an electrode for the light-emitting unit, thereby improving the problem of uneven display in the off-screen state without increasing the manufacturing process.

[0029] It is understood that the following embodiments of this application are only used as examples of applying the corresponding structure to the winding area, but this application is not limited to this and can also be applied to other occasions where it is necessary to shield the underlying metal structure and provide it with protection.

[0030] To better understand this application, the following will be combined with... Figures 1 to 7 The display panel and display device provided in the embodiments of this application will be described in detail.

[0031] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a display panel provided in one embodiment of this application. Figure 2 yes Figure 1 A cross-sectional view at point A-A'.

[0032] In a first aspect, according to an embodiment of this application, a display panel 100 is provided. The display area 101 of the display panel 100 includes a main display area 102 and a winding area 103. The display panel 100 includes a substrate 10, a reflective layer 20, and a light-emitting device layer 30. The reflective layer 20 includes a first reflective portion 21 located in the main display area 102 and a second reflective portion 22 located in the winding area 103. The second reflective portion 22 includes a break opening 221. The light-emitting device layer 30 is located on the side of the reflective layer 20 away from the substrate 10. The light-emitting device layer 30 includes a plurality of spaced light-emitting units 31. The light-emitting unit 31 includes a first electrode 311, a light-emitting material layer 312, and a second electrode 313 arranged sequentially along the thickness direction X. The light-emitting device layer 30 includes a shielding layer 32. The shielding layer 32 is at least partially reused as the first electrode 311. Along the thickness direction X, the orthographic projection of the shielding layer 32 covers the orthographic projection of the break opening 221.

[0033] This application provides a display panel 100, including a substrate 10, a reflective layer 20, and a light-emitting device layer 30 stacked sequentially. The display panel 100 may have a display area 101 and a non-display area. The display area 101 may include a main display area 102 for conventional display and a winding area 103 offset from the main display area 102 and corresponding to the winding portion. Specifically, the substrate 10 serves as a base to support the other two layers, and the substrate 10 may include a multi-layer structure such as a substrate, a wiring layer, and an insulating layer. That is, the substrate 10 may include wiring for electrical connection and circuit elements for display control, etc., which are not specifically limited in this application.

[0034] The reflective layer 20 is disposed on one side of the substrate 10 and can be stacked with the substrate 10. It may include at least one metal trace layer and an insulating layer covering the metal trace layer. The reflective layer 20 is disposed in both the main display area 102 and the winding area 103; that is, the reflective layer 20 may include a first reflective portion 21 located in the main display area 102 and a second reflective portion 22 located in the winding area 103. It is understood that the reflective layer 20 in this embodiment refers to a layer structure that affects the ambient light reflection of the display panel 100, i.e., a layer structure close to the light-emitting unit and in which metal traces are disposed.

[0035] As mentioned above, the main display area 102 and the winding area 103 of the display panel 100 may have different metal wiring arrangements due to the presence of the winding structure. Specifically, the first reflective part 21 and the second reflective part 22, which are respectively disposed in the two areas, have different metal structures. That is, the proportion of their orthogonal projection area in the thickness direction X per unit area is different. The area proportion of the first reflective part 21 is greater than or less than the area proportion of the second reflective part 22.

[0036] It is understood that the unit area within either the main display area 102 or the winding area 103 refers to the area of ​​a certain region that does not overlap with the other. This area ratio refers to the ratio of the orthographic projection area of ​​a portion of the reflective layer 20 within that region in the thickness direction to the aforementioned unit area. The different area ratios of the first reflective portion 21 and the second reflective portion 22 indicate a corresponding difference in their reflection effects on ambient light. More specifically, the second reflective portion 22 may include at least one break 221. Here, the break 221 refers to a metal layer break 221 in the second reflective portion 22 that differs in structure from that of the first reflective portion 21, and is an additional metal layer break that causes a difference in the reflection effects between the first reflective portion 21 and the second reflective portion 22.

[0037] Based on this, the display panel 100 in this embodiment further includes a light-emitting device layer 30, which includes a plurality of spaced light-emitting units 31. Each light-emitting unit 31 can be composed of a first electrode 311, a light-emitting material layer 312 and a second electrode 313 arranged sequentially along the thickness direction X. For example, one of the first electrode 311 and the second electrode 313 can be an anode and the other can be a cathode. The light-emitting material layer 312 sandwiched between the two can be an organic light-emitting material. The three together form an OLED (Organic Light-Emitting Diode).

[0038] It is understood that, for ease of processing, one of the first electrode 311 and the second electrode 313 in the embodiments of this application can be set as a whole layer, that is, the multiple electrodes in the multiple light-emitting units 31 can be set as a single unit. This application does not make any specific limitation in this regard.

[0039] Furthermore, the light-emitting device layer 30 also includes a shielding layer 32, which is at least partially reused as the first electrode 311. That is, the shielding layer 32 and the first electrode 311 are disposed in the same layer. The metal structure in the layer structure may include a part corresponding to the light-emitting unit 31, and this part is reused as the first electrode 311. Alternatively, the layer structure may also include other parts disposed between adjacent light-emitting units 31.

[0040] Based on this, the orthogonal projection of the shielding layer 32 in the thickness direction X covers the orthogonal projection of the break 221 in the second reflective part 22 in that direction. Thus, the shielding layer 32 can shield the portion of the metal reflective layer 20 in the winding area 103 where there is a structural difference due to the break, ensuring that the main display area 102 and the winding area 103 have the same reflectivity to ambient light when the screen is off. Furthermore, the shielding layer 32 can be fabricated concurrently with the fabrication of the first electrode 311, eliminating the need for additional processing steps and reducing costs. Therefore, the screen-off display effect of the display panel 100 can be effectively improved with minimal cost increase.

[0041] like Figure 2 As shown, in some optional embodiments, the reflective layer 20 includes a first metal layer 23, an insulating layer 24 and a second metal layer 25 arranged sequentially along the thickness direction X, and the second reflective portion 22 includes an opening 221 that extends through at least one of the first metal layer 23 and the second metal layer 25 along the thickness direction X.

[0042] In some optional embodiments, the second reflective portion 22 further includes a via 222 disposed through the insulating layer 24 along the thickness direction X, and the first metal layer 23 and the second metal layer 25 are electrically connected through the via 222.

[0043] In this embodiment, the display panel 100 uses a shielding layer 32 to shield the structural differences of the reflective layer 20 in the winding area 103, so that the display panel 100 as a whole has good uniformity of screen-off display. The differential structure of the second reflective part 22 may include vias and metal breaks that can cause differences in reflection effect.

[0044] Specifically, the reflective layer 20 may include a first metal layer 23, an insulating layer 24, and a second metal layer 25 stacked sequentially along the thickness direction X. The first metal layer 23 and the second metal layer 25 may each have metal traces corresponding to the upper light-emitting unit 31, such as traces for connecting the light-emitting unit 31 to surrounding thin-film transistors or other components. To achieve a wire-wound structure, the second reflective portion 22 may include a metal break, i.e., an opening 221 located in at least one of the first metal layer 23 and the second metal layer 25. Simultaneously, the second reflective portion 22 may also include a via 222 for interlayer electrical connection, i.e., a via 222 penetrating the insulating layer 24 along the thickness direction X to allow electrical connection between the first metal layer 23 and the second metal layer 25.

[0045] As mentioned above, the embodiments and accompanying drawings of this application use a three-layer metal structure as an example for illustration of the reflective layer 20. However, it should be understood that this application is not limited to this. The reflective layer 20 may also include more stacked film structures, such as alternately arranged insulating layers and metal wiring layers. The metal structures that are not blocked by the aforementioned first metal layer 23 and second metal layer 25 may affect the reflection effect of the second reflective part 22. This application does not make any specific limitations on this.

[0046] Please refer to the following: Figure 3 and Figure 4 , Figure 3 yes Figure 1 Another sectional view at point A-A'. Figure 4 yes Figure 1 Another cross-sectional view at point A-A'. In some alternative embodiments, the shielding layer 32 includes a main shielding portion 321 and an auxiliary shielding portion 322, wherein the main shielding portion 321 is multiplexed as the first electrode 311, and the auxiliary shielding portion 322 is disposed between adjacent main shielding portions 321.

[0047] In this embodiment, the shielding layer 32 is at least partially reused as the first electrode 311. Based on this, the shielding layer 32 may include a main shielding portion 321 and an auxiliary shielding portion 322. The main shielding portion 321 is the portion reused as the first electrode 311, and the auxiliary shielding portion 322 is spaced apart from the main shielding portion 321 and located between adjacent main shielding portions 321. Specifically, the auxiliary shielding portion 322 may be a metal trace disposed on the same layer as the first electrode 311 and extends between adjacent light-emitting units 31 to achieve the light-emitting control and other functions required by the light-emitting units 31.

[0048] In some alternative embodiments, the orthographic projection of the main blocking portion 321 in the thickness direction X covers the orthographic projection of the second reflecting portion 22 in the thickness direction X.

[0049] Based on the shielding layer 32, which includes a main shielding portion 321 and an auxiliary shielding portion 322 spaced apart, the orthographic projection of the main shielding portion 321, which is reused as the first electrode 311, can completely cover the second reflective portion 22, that is, completely cover the part of the structure that differs from the main display area 102 due to the winding structure. At this time, the auxiliary shielding portion 322 is disposed between adjacent first electrodes 311, which can supplement and expand the shielding area of ​​the shielding layer 32, so that ambient light shone at an angle can also be blocked by the shielding layer 32, further improving the reliability of the display panel 100 and the display uniformity in the screen-off state.

[0050] In some optional embodiments, the minimum distance between the secondary shielding portion 322 and the main shielding portion 321 is greater than or equal to 3 μm.

[0051] As previously described, the shielding layer 32 in this embodiment may include a main shielding portion 321 and an auxiliary shielding portion 322 spaced apart from each other. The main shielding portion 321 is reused as the first electrode 311 in the light-emitting unit 31, and the auxiliary shielding portion 322 is disposed between adjacent main shielding portions 321. In this case, the auxiliary shielding portion 322 can be reused as other signal traces. Based on this, in order to avoid breakdown and short circuit problems between the main shielding portion 321 and the auxiliary shielding portion 322, they should maintain a certain distance to ensure that the device has an insulating structure of a certain thickness. Specifically, the distance can be greater than or equal to 3μm, so as to ensure the circuit reliability of the display panel 100 while achieving reliable shielding of the lower second reflective portion 22, and to avoid electrostatic breakdown or other short circuit problems in the winding area 103 of the display panel 100.

[0052] Please see Figure 5 , Figure 5 yes Figure 1Another cross-sectional view at A-A' shows that, in some optional embodiments, the display panel 100 further includes a touch layer 40 disposed on the side of the light-emitting device layer 30 away from the reflective layer 20. The touch layer 40 includes a plurality of touch traces 41, and the orthographic projection of the touch traces 41 along the thickness direction X is at least partially offset from the orthographic projection of the first electrode 311.

[0053] The display panel 100 in this embodiment can also have a touch function, that is, it can also be provided with a corresponding touch layer 40. The touch layer 40 is disposed on the light-emitting side of the light-emitting device layer 30, that is, the side away from the substrate 10, so as to achieve the required touch control function during the display process. The touch layer 40 can include a plurality of touch electrodes and touch traces 41 that electrically connect the touch electrodes to the required control circuit. These touch traces 41 can also be used to enhance the shielding effect of the shielding layer 32.

[0054] Specifically, the orthogonal projection of the touch trace 41 in the thickness direction X can be offset from the first electrode 311 to supplement the shielding function in the gap area between adjacent light-emitting units 31. Furthermore, since the touch trace 41 and the shielding layer 32 are disposed in different layers and are far apart, there is no need to consider the short circuit problem between them. In embodiments with a main shielding part 321 and an auxiliary shielding part 322, the touch trace 41 and the aforementioned two parts in the shielding layer 32 can be offset, that is, the touch trace 41 supplements the shielding of the gap area between the main shielding part 321 and the auxiliary shielding part 322 to prevent short circuits, thereby further improving the display uniformity of the display panel 100 in the screen-off state.

[0055] In some optional embodiments, the light-emitting device layer 30 includes a filling portion 33, which fills the space between adjacent light-emitting units 31, and the filling portion 33 is made of a black light-absorbing material; or, at least one of the side surface of the filling portion 33 facing away from the substrate 10 and the side surface of the filling portion 33 close to the substrate 10 is provided with a light-absorbing film, and the light-absorbing film is made of a black light-absorbing material.

[0056] The display panel 100 in this embodiment includes a light-emitting device layer 30. Multiple light-emitting units 31 are spaced apart in this layer structure. A filling portion 33 can be disposed in the spaced area, completely filling the spaced area between the light-emitting units 31 and correspondingly forming a pixel definition layer defining the position of the light-emitting units 31. It is understood that the shielding layer 32 is disposed on the same layer as the first electrode 311 in the light-emitting unit 31. In embodiments where the shielding layer 32 is entirely formed by reusing the first electrode 311, the filling portion 33 also completely fills the space between adjacent first electrodes 311. Conversely, in embodiments where the shielding layer 32 also includes an auxiliary shielding portion 322, the portion of the filling portion 33 disposed on the same layer as the shielding layer 32 fills the spaced area between the auxiliary shielding portion 322 and the main shielding portion 321.

[0057] Furthermore, the pixel definition layer formed by the filling part 33 can be made entirely of a black light-absorbing material, such as black organic adhesive. The filling part 33 further prevents the lower reflective layer 20 from reflecting ambient light, and the filling part 33 made of black light-absorbing material can absorb incident ambient light, thereby further improving the uniformity of the display panel 100 when the screen is off.

[0058] Alternatively, the filling portion 33 can be configured in another way, namely, by adding a thin film made of black light-absorbing material to the original filling structure. This thin film can be disposed on at least one of the two opposing surfaces of the filling portion 33 in the thickness direction X, so as to achieve the corresponding functions of absorbing incident ambient light and blocking the reflective layer 20. Optionally, the thin film made of black light-absorbing material can be made of the same material as the black matrix, and this application does not impose any specific limitation on it.

[0059] In some optional embodiments, the display panel 100 further includes a polarizer 50, which is disposed on the side of the light-emitting device layer 30 facing away from the substrate 10. Building upon the aforementioned improvement in the uniformity of reflection in the off-screen state, the display panel 100 may also have a polarizer 50 on the light-emitting side. The polarizer 50 filters the characteristics of the transmitted light vibration direction to further reduce the reflection of ambient light at various points on the display panel 100, resulting in a more uniform reflection effect and improving the uniformity of reflection in the off-screen state.

[0060] Optionally, in embodiments where a touch layer 40 is provided, the polarizer 50 may be disposed on the side of the touch layer 40 away from the substrate 10 and bonded to the touch layer 40. This application does not impose any specific limitations on this.

[0061] Please see Figure 6 , Figure 6 yes Figure 1 Another cross-sectional view at A-A' shows that, in some optional embodiments, the display panel 100 also includes a light filter layer 60, which includes a light-shielding portion 61 and a plurality of color filters 62 spaced apart in the light-shielding portion 61. Along the thickness direction X, the orthographic projection of the color filters 62 covers the orthographic projection of the light-emitting unit 31.

[0062] To further reduce ambient light reflection and improve the screen-off reflection effect, the display panel in this embodiment may further include a light filter layer 60. This light filter layer 60 may include a light-shielding portion 61 and color filters 62. The color filters 62 are spaced apart within the light-shielding portion 61, and each color filter 62 may use the same color as the corresponding light-emitting unit 31 below it, thereby improving the display effect of the display panel 100. Simultaneously, similar to the aforementioned filling portion 33, the light-shielding portion 61 may be made of a black light-absorbing material, or a thin film made of a black light-absorbing material may be provided on its surface to prevent light from passing through, thus providing supplementary shielding to the underlying reflective layer 20.

[0063] At this time, the color filters 62 in the filter layer 60 can be set corresponding to the light-emitting unit 31, so that the orthogonal projection of each color filter 62 in the thickness direction X covers a light-emitting unit 31, so that they are set facing each other, and ensure that the area of ​​the color filter 62 is larger than the area of ​​the light-emitting unit 31, so as to facilitate light emission.

[0064] In some alternative embodiments, the first electrode 311 is disposed between the light-emitting material layer 312 and the reflective layer 20.

[0065] In this embodiment, the first electrode 311 is formed by reusing the shielding layer 32. The first electrode 311 can be disposed on the side closer to the reflective layer 20, that is, it is sandwiched between the light-emitting material layer 312 and the reflective layer 20, so as to reduce the distance between the shielding layer 32 and the reflective layer 20 in the thickness direction X, reduce the possibility of light shining from the side to the second reflective part 22 and generating reflection, thereby further improving the reflection uniformity of the display panel 100 in the screen-off state.

[0066] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a display device provided in one embodiment of this application. Secondly, according to an embodiment of this application, a display device 200 is provided, including a display panel 100, which can perform display and touch functions. The display device 200 can be any product or component with display function, such as a mobile phone, tablet computer, digital photo frame, or electronic paper. The display device 200 provided in this application embodiment has all the beneficial effects of the display panel 100 provided in the embodiments of this application. For details, please refer to the specific descriptions of the display panel 100 in the above embodiments; these descriptions will not be repeated here.

[0067] It is understood that the above description and details are merely exemplary and explanatory, and do not constitute a limitation on this application. Those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A display panel, wherein the display area of ​​the display panel includes a main display area and a winding area, characterized in that, include: substrate; The reflective layer includes a first reflective portion located in the main display area and a second reflective portion located in the winding area. Along the thickness direction of the display panel, the second reflective portion is provided with a break. A light-emitting device layer is located on the side of the reflective layer away from the substrate. The light-emitting device layer includes a plurality of light-emitting elements spaced apart. Each light-emitting element includes a first electrode, a light-emitting material layer, and a second electrode arranged sequentially along the thickness direction. The light-emitting device layer includes a shielding layer. The shielding layer is at least partially reused as the first electrode. Along the thickness direction, the orthographic projection of the shielding layer covers the orthographic projection of the break. The shielding layer includes a main shielding portion and an auxiliary shielding portion. The main shielding portion is reused as the first electrode. The auxiliary shielding portion is disposed between adjacent main shielding portions. The orthographic projection of the main shielding portion in the thickness direction covers the orthographic projection of the second reflective portion in the thickness direction.

2. The display panel according to claim 1, characterized in that, The reflective layer includes a first metal layer, an insulating layer, and a second metal layer arranged sequentially along the thickness direction, and the break is provided through at least one of the first metal layer and the second metal layer along the thickness direction.

3. The display panel according to claim 2, characterized in that, The second reflective portion further includes a via that penetrates the insulating layer along the thickness direction, and the first metal layer and the second metal layer are electrically connected through the via.

4. The display panel according to claim 1, characterized in that, The minimum distance between the auxiliary shielding part and the main shielding part is greater than or equal to 3μm.

5. The display panel according to claim 1, characterized in that, The display panel further includes a touch layer disposed on the side of the light-emitting device layer away from the reflective layer. The touch layer includes multiple touch traces, and along the thickness direction, the orthographic projection of the touch traces is at least partially offset from the orthographic projection of the first electrode.

6. The display panel according to claim 1, characterized in that, The light-emitting device layer includes a filling portion that fills the spaces between adjacent light-emitting elements, and the filling portion is made of a black light-absorbing material; Alternatively, at least one of the surface of the filling portion facing away from the substrate and the surface of the filling portion facing closer to the substrate is provided with a light-absorbing film, the light-absorbing film being made of a black light-absorbing material.

7. The display panel according to claim 1, characterized in that, The display panel also includes a polarizer, which is disposed on the side of the light-emitting device layer opposite to the substrate.

8. The display panel according to claim 1, characterized in that, The display panel also includes a light filter layer, which includes a light-shielding portion and a plurality of color filters spaced apart in the light-shielding portion. Along the thickness direction, the orthographic projection of the color filters covers the orthographic projection of the light-emitting element.

9. The display panel according to claim 1, characterized in that, The first electrode is disposed between the light-emitting material layer and the reflective layer.

10. A display device, characterized in that, The display panel includes any one of claims 1 to 9.

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