CN116997210A

CN116997210A - Display panel and display device

Info

Publication number: CN116997210A
Application number: CN202310949277.8A
Authority: CN
Inventors: 陈昊; 刘雨生; 朱盛祖
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2023-11-03

Abstract

The application relates to a display panel and a display device, comprising: a substrate; the reflection layer comprises a first reflection part positioned in the main display area and a second reflection part positioned in the winding area, and the area occupation ratio of the orthographic projection of the first reflection part in the unit area is smaller or larger than the area occupation ratio of the orthographic projection of the second reflection part in the unit area along the thickness direction of the display panel; the light-emitting device layer is located one side of the reflecting layer, which is away from the substrate, the light-emitting device layer comprises a plurality of light-emitting elements which are arranged at intervals, each light-emitting element comprises a first electrode, a light-emitting material layer and a second electrode which are sequentially arranged along the thickness direction, each light-emitting device layer comprises a shielding layer, at least part of each shielding layer is multiplexed into the first electrode, and the orthographic projection of each shielding layer covers the orthographic projection of each second reflecting part along the thickness direction. The display panel provided by the embodiment of the application can improve the display effect of the screen-extinguishing display.

Description

Display panel and display device

Technical Field

The present application relates to the field of display technologies, and in particular, to a display panel and a display device.

Background

With the development of display technology, the existing display panel is gradually updated, and the requirements of the market on the display panel are also gradually increased. In order to improve the display effect of the display panel and increase the screen ratio, a part of the display panel will set functional components such as an image acquisition module below the display screen, and in order to adapt to the requirements of the area provided with such functional components on parameters such as light transmittance, the wires electrically connected with the functional components generally need to be specially treated by adopting a wire winding technology. At this time, the wiring arrangement in the winding area is different from the wiring arrangement in the common display area, and the reflectivity of the wiring arrangement and the wiring arrangement is different to a certain extent, so that the display panel has the problem of uneven display in the screen-off state.

Therefore, a display panel and a corresponding display device capable of improving the problem of poor display of the screen are needed.

Disclosure of Invention

The application provides a display panel and a display device, wherein the display panel can improve the problem of poor display in a screen-off state.

In a first aspect, an embodiment of the present application provides a display panel, where a display area of the display panel includes a main display area and a winding area, the display panel including: a substrate; the reflection layer comprises a first reflection part positioned in the main display area and a second reflection part positioned in the winding area, and the second reflection part is provided with a break opening; the light-emitting device layer is located one side of the reflecting layer, which is away from the substrate, the light-emitting device layer comprises a plurality of light-emitting elements which are arranged at intervals, each light-emitting element comprises a first electrode, a light-emitting material layer and a second electrode which are sequentially arranged along the thickness direction, each light-emitting device layer comprises a shielding layer, at least part of each shielding layer is multiplexed into the first electrode, and the orthographic projection of each shielding layer covers the orthographic projection of each broken opening along the thickness direction.

According to an aspect of an embodiment of the present application, the reflective layer includes a first metal layer, an insulating layer, and a second metal layer sequentially disposed in a thickness direction, and the break is disposed through at least one of the first metal layer and the second metal layer in the thickness direction.

According to an aspect of the embodiment of the present application, the second reflective part further includes a via hole disposed through the insulating layer in a thickness direction, and the first metal layer and the second metal layer are electrically connected through the via hole.

According to an aspect of the embodiment of the application, the shielding layer includes a main shielding portion and an auxiliary shielding portion, the main shielding portion is multiplexed to be the first electrode, and the auxiliary shielding portion is disposed between adjacent main shielding portions.

According to an aspect of the embodiment of the present application, the orthographic projection of the main shielding portion in the thickness direction covers the orthographic projection of the second reflecting portion in the thickness direction.

According to an aspect of an embodiment of the application, the minimum spacing between the secondary and primary shielding portions is greater than or equal to 3 μm.

According to an aspect of the embodiment of the application, the display panel further includes a touch layer disposed on a side of the light emitting device layer facing away from the reflective layer, the touch layer includes a plurality of touch traces, and the orthographic projection of the touch traces is staggered with the orthographic projection of the first electrode at least partially along the thickness direction.

According to an aspect of an embodiment of the present application, a light emitting device layer includes a filling portion filled between adjacent light emitting units, the filling portion being made of a black light absorbing material; alternatively, at least one of a side surface of the filling portion facing away from the substrate and a side surface near the substrate is provided with a light absorbing film made of a black light absorbing material.

According to an aspect of the embodiment of the application, the display panel further includes a polarizer disposed on a side of the light emitting device layer facing away from the substrate.

According to an aspect of the embodiment of the present application, the display panel further includes a filter layer including a light shielding portion and a plurality of color filters disposed in the light shielding portion at intervals, and an orthographic projection of the color filters covers an orthographic projection of the light emitting unit in a thickness direction.

According to an aspect of an embodiment of the application, the first electrode is arranged between the luminescent material layer and the reflective layer.

In a second aspect, an embodiment of the present application provides a display device, including the display panel in any embodiment of the first aspect.

The display panel provided by the embodiment of the application is provided with the main display area and the winding area, wherein the first reflecting part and the second reflecting part which are respectively positioned in the two areas form a reflection structure difference due to the existence of the winding structure, meanwhile, a shielding layer is arranged in a light emitting device layer of the display panel, the shielding layer can be formed by multiplexing at least part of electrodes in the light emitting device layer, and the second reflecting part is covered by the orthographic projection of the shielding layer in the thickness direction, so that shielding is formed, uneven display of the display panel in a screen-extinguishing state caused by reflection of the second reflecting part on ambient light is avoided, and screen-extinguishing reflection uniformity of the display panel is improved.

Drawings

Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;

FIG. 2 is a cross-sectional view taken at A-A' of FIG. 1;

FIG. 3 is another cross-sectional view at A-A' of FIG. 1;

FIG. 4 is another cross-sectional view at A-A' of FIG. 1;

FIG. 5 is another cross-sectional view at A-A' of FIG. 1;

FIG. 6 is another cross-sectional view at A-A' of FIG. 1;

fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.

Wherein:

100-a display panel; 200-a display device;

101-a display area; 102-a main display area; 103-a winding area;

10-a substrate; a 20-reflective layer; 30-a light emitting device layer; 40-a touch layer; 50-a polarizer; 60-a filter layer;

21-a first reflecting portion; 22-a second reflecting portion; 23-a first metal layer; 24-an insulating layer; 25-a second metal layer; 31-a light emitting unit; 32-a shielding layer; 33-a filling part; 41-touch wiring; 61-a light shielding part; 62-a color filter;

221-opening; 222-via holes; 311-a first electrode; 312-a layer of luminescent material; 313-a second electrode; 321-a primary shield; 322-auxiliary shielding part;

x-thickness direction.

In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the application and are not configured to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

It will be understood that when a layer, an area, or a structure is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or another layer or area can be included between the layer and the other layer, another area. And if the component is turned over, that layer, one region, will be "under" or "beneath" the other layer, another region.

Features and exemplary embodiments of various aspects of the application are described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the existing display panel, in order to improve the screen occupation ratio of the display panel and achieve a better display effect, part of the display panel adopts a setting mode of an under-screen camera, namely, an image acquisition module is arranged below a screen so as to realize full-screen display. However, when the image acquisition module works, the light emergent side of the display panel needs to be subjected to image acquisition, so that in order to ensure the light transmittance of the screen body in the image acquisition process, a part of the screen body above the image acquisition module generally needs to be provided with corresponding routing and display control elements such as a thin film transistor and the like in a peripheral area, namely, the display control elements are staggered with the area provided with the image acquisition module. At this time, the wiring connecting the control element and the pixel needs to be routed, and the film structure in the routing area is different from that in the normal display area.

On the basis, the applicant finds that the display area in the display panel can comprise a conventional main display area and a winding area which is arranged corresponding to components such as an image acquisition module under the screen, and the film layer structure in the winding area is different from the main display area, such as the arrangement position of a metal wiring and a connecting via hole penetrating through an insulating layer along the thickness direction, and the difference of the metal components can cause the reflection effect of the winding area on ambient light and the reflection effect of the main display area to form a larger difference, so that the display panel has a patch corresponding to the winding area in a screen-off state, and the poor display problem is caused.

In order to solve the above problems, embodiments of the present application provide a display panel and a corresponding display device, in which a light emitting device layer of the display panel is provided with a shielding layer, the shielding layer shields a region with different reflectivity caused by a lower winding, and the shielding layer can be at least partially multiplexed as an electrode of a light emitting unit, so that the problem of uneven display in a screen-off state is improved on the basis of not increasing a process flow.

It will be appreciated that the following embodiments of the present application will be described with respect to the application of the corresponding structure to the winding area, but the present application is not limited thereto and may be applied to other applications where shielding of the underlying metal structure is desired and provide protection thereto.

In order to better understand the present application, a display panel and a display device provided by embodiments of the present application are described in detail below with reference to fig. 1 to 7.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the application, and fig. 2 is a cross-sectional view at A-A' in fig. 1.

In a first aspect, according to an embodiment of the present application, a display panel 100 is provided, a display area 101 of the display panel 100 includes a main display area 102 and a winding area 103, and the display panel 100 includes a substrate 10, a reflective layer 20, and a light emitting device layer 30, wherein 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, and the second reflective portion 22 includes a break 221; the light emitting device layer 30 is located at a side of the reflective layer 20 facing away from the substrate 10, the light emitting device layer 30 includes a plurality of light emitting elements 31 arranged at intervals, the light emitting elements 31 include a first electrode 311, a light emitting material layer 312 and a second electrode 313 sequentially arranged along a thickness direction X, the light emitting device layer 30 includes a shielding layer 32, the shielding layer 32 is at least partially multiplexed into the first electrode 311, and an orthographic projection of the shielding layer 32 covers an orthographic projection of the cut-off opening 221 along the thickness direction X.

The embodiment of the present application provides a display panel 100, which includes a substrate 10, a reflective layer 20, and a light emitting device layer 30 stacked in this order. The display panel 100 may have a display area 101 and a non-display area, and the display area 101 may be provided with a main display area 102 for realizing a normal display and a winding area 103 which is staggered from the main display area 102 and corresponds to a partial area where winding is performed. Specifically, the substrate 10 is used as a base for carrying another two-layer structure, and the substrate 10 may include a substrate, a wiring layer, an insulating layer, and other multi-layer structures, that is, the substrate 10 may include a wiring for implementing electrical connection, a circuit element for performing display control, and the like, which is not particularly limited in the present application.

The reflective layer 20 is disposed on one side of the substrate 10 and may be stacked on the substrate 10, and may include at least one metal wiring layer, an insulating layer disposed over the metal wiring layer, and the like. 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 the embodiment of the present application refers to a layer structure having an effect on the reflection of ambient light of the display panel 100, that is, a layer structure adjacent to the light emitting unit and having metal traces disposed therein.

As described above, the main display area 102 and the winding area 103 of the display panel 100 may have a difference in metal routing arrangement due to the presence of the winding structure, specifically, the first reflective portion 21 and the second reflective portion 22 respectively disposed in the two areas have different metal structures, that is, the front projection area of the two areas in the thickness direction X is different in the ratio of unit area, and the area ratio of the first reflective portion 21 is larger or smaller than the area ratio of the second reflective portion 22.

It is understood that the unit area in one of the main display area 102 and the winding area 103 refers to an area of a certain area that does not overlap with the other area, and the area ratio refers to a ratio of the orthographic projection area of the partially reflective layer 20 located in the area to the unit area. The area ratio of the first reflecting portion 21 to the area ratio of the second reflecting portion 22 are different, and the difference is characterized in that the reflecting effect of the first reflecting portion and the second reflecting portion on the external environment light are correspondingly different. More specifically, the second reflecting portion 22 may include at least one break 221 therein, where the break 221 refers to a break 221 in the second reflecting portion 22 of a metal layer that is different from the structure of the first reflecting portion 21 and is more than the specific structure of the first reflecting portion 21, that is, a break in the metal structure that may cause a difference in reflection effect between the first reflecting portion 21 and the second reflecting portion 22.

On this basis, the display panel 100 in the embodiment of the present application further includes a Light Emitting device layer 30, where the Light Emitting device layer 30 includes a plurality of Light Emitting units 31 disposed at intervals, and each Light Emitting unit 31 may be formed by a first electrode 311, a Light Emitting material layer 312, and a second electrode 313 sequentially disposed along a thickness direction X, and one of the first electrode 311 and the second electrode 313 may be an anode, while the other may be a cathode, and the Light Emitting material layer 312 interposed therebetween may be an Organic Light Emitting material, so that an OLED (Organic Light-Emitting Diode) is formed.

It is understood that, for convenience of processing, one of the first electrode 311 and the second electrode 313 in the embodiment of the present application may be disposed in whole, that is, a plurality of electrodes in the plurality of light emitting units 31 may be integrally disposed, which is not particularly limited in the present application.

Further, the light emitting device layer 30 further includes a shielding layer 32, where the shielding layer 32 is at least partially multiplexed into the first electrode 311, that is, the shielding layer 32 and the first electrode 311 are disposed in the same layer, and the metal structure in the layer structure may include a portion disposed corresponding to the light emitting unit 31 and the portion is multiplexed into the first electrode 311, or the layer structure may further include other portions disposed between adjacent light emitting units 31.

On this basis, the orthographic projection of the shielding layer 32 in the thickness direction X covers the orthographic projection of the break 221 in the second reflecting portion 22 in this direction, whereby the portion of the wiring region 103 where the metal reflecting layer 20 has the break structural difference can be shielded by the shielding layer 32, that is, the main display region 102 and the wiring region 103 are kept to have the same reflectivity for the ambient light in the off-screen state by the shielding layer 32. Meanwhile, the shielding layer 32 can be prepared together in the process of processing and preparing the first electrode 311, so that the process flow is not required to be increased, and accordingly, the required cost can be reduced, and the screen display effect of the display panel 100 can be effectively improved on the basis of small cost increase.

As shown in fig. 2, in some alternative embodiments, the reflective layer 20 includes a first metal layer 23, an insulating layer 24, and a second metal layer 25 sequentially disposed in the thickness direction X, and the second reflective portion 22 includes an opening 221 disposed through at least one of the first metal layer 23 and the second metal layer 24 in the thickness direction X.

In some alternative embodiments, the second reflecting portion 22 further includes a via 222 disposed through the insulating layer 24 in the thickness direction X, and the first metal layer 23 and the second metal layer 25 are electrically connected through the via 222.

The display panel 100 in the embodiment of the present application shields the structural difference of the reflective layer 20 in the winding area 103 by providing the shielding layer 32, so that the display panel 100 has good off-screen display uniformity as a whole, wherein the differential structure of the second reflective portion 22 may include a via hole, a metal fracture, and the like, which can cause the difference of the reflective effect.

Specifically, the reflective layer 20 may include a first metal layer 23, an insulating layer 24, and a second metal layer 25 stacked in this order in the thickness direction X, where the first metal layer 23 and the second metal layer 25 may be provided with metal wirings corresponding to the upper light emitting units 31, for example, wirings for connecting the light emitting units 31 to peripheral thin film transistors and the like, respectively. At this time, in order to realize the wire-wound structure, the second reflecting portion 22 may include a metal fracture, that is, an opening 221 located at least one of the first metal layer 23 and the second metal layer 25. Meanwhile, the second reflecting portion 22 may further include a via 222 electrically connected across layers, that is, a via 222 penetrating through the insulating layer 24 in the thickness direction X so that the first metal layer 23 and the second metal layer 25 can be electrically connected to each other.

As described above, the reflective layer 20 is illustrated as including three metal layers in the embodiments of the present application and the drawings, but it should be understood that the present application is not limited thereto, and the reflective layer 20 may also include a plurality of stacked film structures, such as an insulating layer and a metal routing layer, which are alternately disposed, wherein a portion of the metal structures not covered by the first metal layer 23 and the second metal layer 25 may affect the reflective effect of the second reflective portion 22, which is not particularly limited thereto.

Referring to fig. 3 and 4 together, fig. 3 is another cross-sectional view at A-A 'in fig. 1, and fig. 4 is another cross-sectional view at A-A' in fig. 1. In some alternative embodiments, the shielding layer 32 includes a main shielding portion 321 and an auxiliary shielding portion 322, the main shielding portion 321 being multiplexed into the first electrode 311, the auxiliary shielding portion 322 being disposed between adjacent main shielding portions 321.

The shielding layer 32 in the embodiment of the present application is at least partially multiplexed into the first electrode 311, based on which the shielding layer 32 may include a main shielding portion 321 and an auxiliary shielding portion 322, where the main shielding portion 321 is multiplexed into the first electrode 311, and the auxiliary shielding portion 322 is spaced from the main shielding portion 321 and is located between adjacent main shielding portions 321. Specifically, the auxiliary shielding portion 322 may be a metal wire disposed in the same layer as the first electrode 311 and extends between the adjacent light emitting units 31 to achieve the functions of light emission control and the like required by the light emitting units 31.

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

On the basis that the shielding layer 22 includes the main shielding portion 321 and the auxiliary shielding portion 322 which are disposed at intervals, the orthographic projection of the main shielding portion 321 multiplexed as the first electrode 311 may completely cover the second reflecting portion 22 inside, that is, a portion of the structure different from the main display area 102 due to the winding structure. At this time, the auxiliary shielding portion 322 is disposed between the adjacent first electrodes 311, so as to supplement and enlarge the shielding area of the shielding layer 32, and the obliquely irradiated ambient light can be blocked by the shielding layer 32, thereby further improving the reliability of the display panel 100 and the display uniformity in the screen-off state.

In some alternative embodiments, the minimum spacing between the secondary and primary shields 322, 321 is greater than or equal to 3 μm.

As described above, the shielding layer 32 in the embodiment of the present application may include the main shielding portions 321 and the auxiliary shielding portions 322 that are disposed at intervals, where the main shielding portions 321 are multiplexed to be the first electrode 311 in the light emitting element 31, and the auxiliary shielding portions 322 are disposed between adjacent main shielding portions 321, and at this time, the auxiliary shielding portions 322 may be multiplexed to be other signal traces. On this basis, in order to avoid the problems of breakdown short circuit and the like between the main shielding part 321 and the auxiliary shielding part 322, a certain distance should be kept between the main shielding part and the auxiliary shielding part so that the device has an insulating structure with a certain thickness. Specifically, the pitch may be greater than or equal to 3 μm to ensure the circuit reliability of the display panel 100 on the premise of achieving reliable shielding of the underlying second reflection part 22, avoiding electrostatic breakdown or other short-circuit problems in the winding region 103 of the display panel 100.

Referring to fig. 5, fig. 5 is another cross-sectional view of fig. 1 A-A', in some alternative embodiments, the display panel 100 further includes a touch layer 40 disposed on a side of the light emitting device layer 30 facing away from the reflective layer 20, the touch layer 40 includes a plurality of touch traces 41, and in the thickness direction X, the front projection of the touch trace 41 is at least partially staggered from the front projection of the first electrode 311.

The display panel 100 in the embodiment of the present application may further have a touch function, that is, a corresponding touch layer 40 may be further disposed in the touch layer, where the touch layer 40 is disposed on the light emitting side of the light emitting device layer 30, that is, the side facing away from the substrate 10, so as to achieve a desired touch control function in the display process. The touch layer 40 may include a plurality of touch electrodes and touch traces 41 electrically connecting the touch electrodes to a desired control circuit, and the touch traces 41 may be used to enhance the shielding effect of the shielding layer 32.

Specifically, the front projection of the touch trace 41 in the thickness direction X may be staggered with respect to the first electrode 311 to supplement the shielding function at the gap region between the adjacent light emitting elements 31. Further, the touch trace 41 and the shielding layer 32 are arranged in different layers and are further apart, so that the problem of short circuit between the two is not needed to be considered, and in the embodiment where the main shielding portion 321 and the auxiliary shielding portion 322 exist, the two of the touch trace 41 and the shielding layer 32 can be arranged in a staggered manner, that is, the other touch trace 41 supplements and shields the interval area between the main shielding portion 321 and the auxiliary shielding portion 322 due to short circuit prevention, so that the display uniformity of the display panel 100 in the screen-off state is further improved.

In some alternative embodiments, the light emitting device layer 30 includes filling portions 33, the filling portions 33 are filled between adjacent light emitting cells 31, and the filling portions 33 are made of a black light absorbing material; alternatively, at least one of a side surface of the filling portion 33 facing away from the substrate 10 and a side surface near the substrate 10 is provided with a light absorbing film made of a black light absorbing material.

The display panel 100 in the embodiment of the present application includes the light emitting device layer 30 in which a plurality of light emitting cells 31 are disposed at intervals from each other, and the interval region may be provided with the filling portion 33, and the filling portion 33 may completely fill the interval region between the light emitting cells 31 and accordingly form the pixel defining layer defining the positions of the light emitting cells 31. It is understood that the shielding layer 32 is disposed in the same layer as the first electrodes 311 in the light emitting unit 31, and in an embodiment in which the shielding layer 32 is formed entirely by multiplexing the first electrodes 311, the filling portions 33 are also entirely filled between the adjacent first electrodes 311. In contrast, in the embodiment in which the shielding layer 32 further includes the auxiliary shielding portion 322, the portion where the filling portion 32 is disposed in the same layer as the shielding layer 32 is filled in the interval region between the auxiliary shielding portion 322 and the main shielding portion 321, respectively.

Further, the pixel defining layer formed by the filling portion 33 may be entirely made of a black light-absorbing material, such as a black organic gel material, etc., and the reflection of the ambient light by the underlying reflective layer 20 is further prevented by the filling portion 33, and the filling portion 33 made of the black light-absorbing material may absorb the incident ambient light, thereby further improving the display uniformity of the display panel 100.

Alternatively, the filling portion 33 may be further provided with a film made of a black light absorbing material based on the original filling structure, and the film may be disposed on at least one of two opposite side surfaces of the filling portion 33 in the thickness direction X, so as to achieve the functions of absorbing the incident ambient light and shielding the reflective layer 20. Alternatively, the film made of the black light absorbing material may be made of the same material as the black matrix, which is not particularly limited in the present application.

In some alternative embodiments, the display panel 100 further includes a polarizer 50, and the polarizer 50 is disposed on a side of the light emitting device layer 30 facing away from the substrate 10. On the basis of improving the uniformity of the reflection effect in the screen-off state, the display panel 100 may further be provided with the polarizer 50 on the light-emitting side, and the reflection of the external environment light on each place of the display panel 100 is further reduced by screening the characteristics of the transmitted light vibration direction by the polarizer 50, so that the reflection effect is more uniform, and the uniformity of the reflection in the screen-off state is improved.

Alternatively, in the embodiment where the touch layer 40 is further disposed, the polarizer 50 may be disposed on a side of the touch layer 40 away from the substrate 10 and adhesively connected to the touch layer 40, which is not particularly limited in the present application.

Referring to fig. 6, fig. 6 is another cross-sectional view of fig. 1 A-A', in some alternative embodiments, the display panel 100 further includes a filter layer 60, the filter layer 60 includes a light shielding portion 61 and a plurality of color filters 62 disposed in the light shielding portion 61 at intervals, and the front projection of the color filters 60 covers the front projection of the light emitting unit 31 along the thickness direction X.

In order to further reduce reflection of ambient light and improve the light-shielding reflection effect, the display panel in the embodiment of the present application may further include a filter layer 60, the filter layer 60 may include a light shielding part 61 and color filters 62 therein, wherein the color filters 62 are disposed in the light shielding part 61 at intervals, and each color filter 62 may use the same color as the light emitting unit 31 disposed correspondingly thereunder to improve the display effect of the display panel 100. Meanwhile, the light shielding part 61 may be made of a black light absorbing material, or a film made of a black light absorbing material may be provided on the surface to prevent light from passing therethrough, similar to the filling part 33 described above, to form a supplementary shielding of the lower reflection layer 20.

At this time, the color filters 62 in the filter layer 60 may be disposed corresponding to the light emitting units 31 such that the orthographic projection of each color filter 62 in the thickness direction X covers one light emitting unit 31 so as to be disposed opposite thereto, and the area of the color filter 62 is ensured to be larger than that of the light emitting unit 31 so as to facilitate light emission.

In some alternative embodiments, the first electrode 311 is disposed between the luminescent material layer 312 and the reflective layer 20.

The first electrode 311 in the embodiment of the present application is formed by multiplexing the shielding layer 32, and the first electrode 311 may be disposed on a side closer to the reflective layer 20, that is, between the luminescent 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 that light irradiates the second reflective portion 22 from the side and generates reflection, and further improve the reflection uniformity of the display panel 100 in the off-screen state.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a display device according to an embodiment of the application. In a second aspect, a display device 200 is provided according to an embodiment of the present application, which includes a display panel 100, and may perform functions such as display and touch control by the display panel 100. The display device 200 may be any product or component with display function, such as a mobile phone, a tablet computer, a digital photo frame, an electronic paper, etc. The display device 200 provided in the embodiment of the present application has all the beneficial effects of the display panel 100 provided in the embodiment of the present application, and the specific description of the display panel 100 in the above embodiments may be referred to, and the description of the embodiment is omitted herein.

It will be understood that the foregoing description and details are merely exemplary and explanatory and are not restrictive of the application, as various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A display panel, a display area of which includes a main display area and a wire winding area, comprising:

a substrate;

the reflection layer comprises a first reflection part positioned in the main display area and a second reflection part positioned in the winding area, and the second reflection part is provided with a break opening along the thickness direction of the display panel;

the light-emitting device layer is located one side of the reflecting layer, which is away from the substrate, the light-emitting device layer comprises a plurality of light-emitting elements which are arranged at intervals, the light-emitting elements comprise a first electrode, a light-emitting material layer and a second electrode which are sequentially arranged along the thickness direction, the light-emitting device layer comprises a shielding layer, the shielding layer is at least partially multiplexed into the first electrode, and the front projection of the shielding layer covers the front projection of the cut-off opening.

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

preferably, the second reflecting portion further includes a via hole penetrating the insulating layer in the thickness direction, and the first metal layer and the second metal layer are electrically connected through the via hole.

3. The display panel of claim 1, wherein the shielding layer includes a primary shielding portion multiplexed as the first electrode and a secondary shielding portion disposed between adjacent primary shielding portions.

4. A display panel according to claim 3, wherein the orthographic projection of the main shielding portion in the thickness direction covers the orthographic projection of the second reflecting portion in the thickness direction.

5. The display panel of claim 4, wherein a minimum spacing between the auxiliary barrier and the main barrier is greater than or equal to 3 μιη.

6. The display panel of claim 1, further comprising a touch layer disposed on a side of the light emitting device layer facing away from the reflective layer, the touch layer comprising a plurality of touch traces, wherein orthographic projections of the touch traces are staggered from orthographic projections of the first electrode at least partially along the thickness direction.

7. The display panel according to claim 1, wherein the light emitting device layer includes a filling portion filled between adjacent light emitting cells, the filling portion being made of a black light absorbing material;

or, at least one of a side surface of the filling part facing away from the substrate and a side surface close to the substrate is provided with a light absorbing film made of a black light absorbing material;

preferably, the display panel further comprises a polarizer, and the polarizer is arranged on one side of the light-emitting device layer, which is away from the substrate.

8. The display panel according to claim 1, further comprising a filter layer including a light shielding portion and a plurality of color filters provided in the light shielding portion at intervals, wherein orthographic projections of the color filters cover orthographic projections of the light emitting units in the thickness direction.

9. The display panel of claim 1, wherein the first electrode is disposed between the luminescent material layer and the reflective layer.

10. A display device comprising the display panel according to any one of claims 1 to 9.