CN111564568B

CN111564568B - Display panel and display device

Info

Publication number: CN111564568B
Application number: CN202010419388.4A
Authority: CN
Inventors: 田宏伟; 赵梦; 于洋; 牛亚男; 刘政
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2023-06-06
Anticipated expiration: 2040-05-18
Also published as: CN111564568A

Abstract

The disclosure relates to a display panel and a display device, and relates to the technical field of display. The display panel comprises a flexible substrate, a display layer and a light blocking layer, wherein the display layer is arranged on one side of the flexible substrate and is provided with a bending region and a flat region adjacent to the bending region, and the bending region is provided with a plurality of first sub-pixels; the light blocking layers are positioned in the bending region and comprise a plurality of light blocking structures, the orthographic projection of each light blocking structure on the flexible substrate is positioned outside the orthographic projection of the first sub-pixel on the flexible substrate, and each light blocking structure is positioned between at least one first sub-pixel and the flat region so as to block at least part of light rays emitted by the first sub-pixel from propagating to the flat region.

Description

Display panel and display device

Technical Field

The disclosure relates to the technical field of display, in particular to a display panel and a display device.

Background

The display panel is an indispensable component in electronic devices such as mobile phones, computers, televisions, and the like. Currently, organic electroluminescent display panels (Organic Electro luminesecent Display, OLED) are widely used for flexible display panels such as curved screens and folding screens, so as to meet the modeling requirement. However, in the bendable display panel, a light emission abnormality, such as yellowing, is likely to occur at the boundary between the flat region and the bending region, and a yellow edge is formed, which affects the display effect.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure is directed to overcoming the defects of the prior art, and providing a display panel and a display device, which can reduce the risk of yellowing of the edge of the bendable display panel and improve the display effect.

According to an aspect of the present disclosure, there is provided a display panel including:

a flexible substrate;

the display layer is arranged on one side of the flexible substrate and is provided with a bending region and a flat region adjacent to the bending region, and the bending region is provided with a plurality of first sub-pixels;

the light blocking layer is positioned in the bending region and comprises a plurality of light blocking structures, the orthographic projection of each light blocking structure on the flexible substrate is positioned outside the orthographic projection of the first sub-pixel on the flexible substrate, and each light blocking structure is at least positioned between one first sub-pixel and the flat region so as to block at least part of light emitted by the first sub-pixel from transmitting to the flat region.

In an exemplary embodiment of the present disclosure, the number of the flat regions is one, the number of the light blocking structures is less than the number of the first sub-pixels, and the density of the light blocking structures decreases in a direction away from the flat regions.

In an exemplary embodiment of the present disclosure, the inflection regions and the flat regions are distributed along a row direction, the light blocking structures are distributed in an array, and the light blocking structures located in the same column in a column direction are integrally or alternately distributed.

In one exemplary embodiment of the present disclosure, the display layer includes:

the driving layer is arranged on one side of the flexible substrate;

the light-emitting functional layer is arranged on the surface of the driving layer, which is away from the flexible substrate;

the packaging layer covers the light-emitting functional layer;

the light blocking layer is arranged on the surface, away from the flexible substrate, of the packaging layer.

In an exemplary embodiment of the present disclosure, the display layer further includes:

the touch control layer is arranged on the surface of the packaging layer, which is away from the flexible substrate, and is insulated from the light blocking layer.

In one exemplary embodiment of the present disclosure, the light blocking layer includes:

the light absorption layer is arranged on the surface of the packaging layer, which is away from the flexible substrate;

and the reflecting layer covers the light absorbing layer.

the driving layer is arranged on one side of the flexible substrate and is provided with a protruding part protruding towards the direction away from the flexible substrate;

the first electrode layer covers the driving layer and protrudes in the area covering the protruding part, and the first electrode layer is made of a light-reflecting material; the light blocking layer includes a region where the first electrode layer covers the protruding portion;

the light-emitting layer is arranged on the surface of the first electrode layer, which is away from the flexible substrate, and the orthographic projection of the light-emitting layer on the driving layer is positioned outside the protruding part;

and a second electrode layer covering the light emitting layer.

In an exemplary embodiment of the present disclosure, the light blocking layer further includes:

and the convex part is arranged on the surface of the supporting layer, which is away from the flexible substrate.

In one exemplary embodiment of the present disclosure, the driving layer includes:

an active layer arranged on one side of the flexible substrate;

a gate insulating layer covering the active layer;

the grid electrode is arranged on the surface, away from the flexible substrate, of the grid insulating layer;

an insulating layer covering the gate electrode and the gate insulating layer;

the capacitor electrode is arranged on the surface of the insulating layer, which is away from the flexible substrate;

a dielectric layer covering the capacitor electrode and the insulating layer;

the source drain layer is arranged on the surface of the dielectric layer, which is away from the flexible substrate, and comprises a source electrode and a drain electrode which are connected with the active layer; the supporting layer and the source-drain layer are arranged on the same layer;

and the flat layer covers the source-drain layer and the supporting layer, and protrudes in a region corresponding to the supporting layer to form the protruding part.

According to an aspect of the present disclosure, there is provided a display device including the display panel of any one of the above.

According to the display panel and the display device, the display panel in a folded or curved shape can be obtained by bending the bending region of the display layer and the region of the flexible substrate corresponding to the bending region. After bending, the light emitted by the first sub-pixel of the bending region can be blocked by each light blocking structure of the light blocking layer, so that the light emitted by the bending region to the flat region is reduced, the yellowing generated at the edge of the flat region due to light scattering and fluorescence effect is improved, the interference of the emergent light of the bending region to the flat region is reduced, and the display effect is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic diagram illustrating a distribution of light blocking layers in an embodiment of a display panel according to the disclosure.

Fig. 2 is a top view of a curved display panel according to an embodiment of the disclosure.

Fig. 3 is a side view of a curved display panel according to an embodiment of the present disclosure.

Fig. 4 is a top view of a bendable display panel according to an embodiment of the disclosure before bending.

Fig. 5 is a side view of a bendable display panel according to an embodiment of the disclosure after bending.

Fig. 6 is a cross-sectional view of an embodiment of a display panel of the present disclosure.

Fig. 7 is a cross-sectional view of another embodiment of a display panel of the present disclosure.

Fig. 8 is a cross-sectional view of still another embodiment of a display panel of the present disclosure.

Fig. 9 is a schematic view of a light blocking structure of an embodiment of a display panel of the present disclosure.

Fig. 10 is a schematic view of a light blocking structure of an integrated structure of an embodiment of a display panel of the present disclosure.

Fig. 11 is a schematic view of a light blocking structure in an embodiment of a display panel of the disclosure.

Fig. 12 is a schematic view of another light blocking structure in an embodiment of a display panel of the disclosure.

Reference numerals illustrate:

1. a flexible substrate; 101. a substrate; 102. a buffer layer; 2. a display layer; 21. a first subpixel; 21a, red first sub-pixel; 21b, a green first sub-pixel; 21c, blue first sub-pixel; 22. a second subpixel; 22a, red second sub-pixel; 22b, green second sub-pixel; 22c, blue second sub-pixels; 201. a driving layer; 2011. an active layer; 2012. a gate insulating layer; 2013. a gate; 2014. an insulating layer; 2015. a capacitor electrode; 2016. a dielectric layer; 2017. a source electrode; 2018. a drain electrode; 2019. a flat layer; 2019a, a first planarization layer; 2019b, a second planar layer; 20191. a protruding portion; 202. a light-emitting functional layer; 2021. a first electrode layer; 2022. a pixel definition layer; 2023. a light emitting layer; 2024. a second electrode; 203. an encapsulation layer; 204. a touch layer; 200. a support layer; 200a, a first supporting layer; 200b, a second supporting layer; 3. a light blocking layer; 31. a light blocking structure; 301. a light absorbing layer; 302. a light reflecting layer; 4. a polarizer; 5. a cover plate; 6. a first separation layer; 7. and a second separation layer.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first" and "second" are used merely as labels, and do not limit the number of their objects.

In the related art, the bendable display panel may include at least a curved display panel and a foldable display panel, wherein: the curved display panel comprises a flat area and bending areas positioned at the edges of the flat area, wherein the bending areas can be cambered structures bent to form a certain angle with the flat area, for example, the number of the bending areas is two and the bending areas are positioned at two sides of the flat area. The foldable display panel includes a bending region and flat regions at both sides of the bending region, and the flat regions can be folded by bending the bending region.

For the bendable display panel, after bending, when the light rays of the bending area pass through each film layer, scattering and fluorescent effects can be generated, so that the light rays which are emitted from the bending area and are concentrated at the edge of the flat area are yellowing, and the edge of the flat area is yellow, so that the display effect is influenced.

The present disclosure provides a display panel, as shown in fig. 1, including a flexible substrate 1, a display layer 2, and a light blocking layer 3, wherein:

the display layer 2 is laminated on one side of the flexible substrate 1 and is provided with a bending region W and a flat region S adjacent to the bending region W, wherein the bending region W is provided with a plurality of first sub-pixels 21;

the light blocking layer 3 is located in the bending region W and includes a plurality of light blocking structures 31, the orthographic projection of each light blocking structure 31 on the flexible substrate 1 is located outside the orthographic projection of the first sub-pixel 21 on the flexible substrate 1, and each light blocking structure 31 is located at least between one first sub-pixel 21 and the flat region S to block at least part of the light emitted by the first sub-pixel 21 from propagating to the flat region S.

The display panel according to the embodiment of the present disclosure can be obtained by bending the bending region W of the display layer 2 and the region of the flexible substrate 1 corresponding to the bending region W, and thus a display panel having a folded or curved surface shape can be obtained. After the light is folded, the light emitted by the first sub-pixel 21 of the folding region W can be blocked by each light blocking structure 31 of the light blocking layer 3, so that the light emitted by the folding region W to the flat region S is reduced, the scattering and fluorescent effects of the light emitted by the folding region W are improved, the yellowing is generated at the edge of the flat region S, the interference of the emergent light of the folding region W to the flat region S is reduced, and the display effect is improved.

The following describes each portion of the display panel according to the embodiment of the present disclosure in detail:

the flexible substrate 1 may be PI (polyimide), but of course PET (polyethylene terephthalate) or other flexible materials may be used as long as they can be bent. The shape and size of the flexible substrate 1 are not particularly limited herein.

As shown in fig. 6, the flexible substrate 1 may have a single-layer structure or a multi-layer structure, and for example, the flexible substrate 1 may include a base 101 made of a flexible material and a buffer layer 102 laminated on one side of the base 101.

The display layer 2 is provided on the side of the flexible substrate 1, for example, it may be laminated on the surface of the buffer layer 102 facing away from the base 101.

The display layer 2 has a bending region W and a flat region S, and the bending region W is adjacent to the flat region S and can be used for displaying images. The flat area S may be in a flat state, and the bending area W and the corresponding flexible substrate 1 may be simultaneously bent so as to form a certain bending angle with the flat area S.

In some embodiments of the present disclosure, as shown in fig. 2 and 3, the display panel is a curved display panel, the number of flat areas S is one, and the inflection areas W are distributed at the edges of the flat areas S, for example, the number of inflection areas W is two and distributed at both sides of the flat areas S. Meanwhile, the bending region W is bent at a fixed bending angle toward the backlight side of the flat region S.

In other embodiments of the present disclosure, as shown in fig. 4 and 5, the display panel is a foldable display panel, the number of bending regions W may be one, the number of flat regions S is two and distributed on two sides of the bending region W, and by bending the bending regions W, the two flat regions S may be folded.

As shown in fig. 1, the inflection region W has a plurality of first sub-pixels 21 distributed in an array, and each of the first sub-pixels 21 is configured to emit light to display an image. All the first sub-pixels 21 may be divided into a plurality of first pixels, each of which includes a plurality of first sub-pixels 21, and the first sub-pixels 21 in each of the first pixels may include red first sub-pixels 21a, green first sub-pixels 21b, and blue first sub-pixels 21c, but of course, may include other colors of first sub-pixels 21. The number of first sub-pixels 21 of any one color within the same first pixel may be one or more.

Meanwhile, as shown in fig. 1, the flat area S has a plurality of second sub-pixels 22 distributed in an array, all the second sub-pixels 22 may be divided into a plurality of second pixels, each of the second pixels includes a plurality of second sub-pixels 22, and the second sub-pixels 22 in each pixel may include a red second sub-pixel 22a, a green second sub-pixel 22b and a blue second sub-pixel 22c, and of course, may also include the second sub-pixels 22 of other colors. The number of first sub-pixels 21 of any one color within the same second pixel may be one or more.

Note that, the first sub-pixel 21 and the second sub-pixel 22 are just different names of sub-pixels in different areas, and are not limited to two sub-pixels with different structures, that is, the first sub-pixel 21 and the second sub-pixel 22 may be sub-pixels with the same structure, but are located in different areas.

As shown in fig. 1, the light blocking layer 3 is located in the inflection region W, and the light blocking layer 3 may include a plurality of light blocking structures 31, and the light blocking structures 31 may be stripe structures extending along a straight line, a curved line, or a broken line. The orthographic projection of each light blocking structure 31 on the flexible substrate 1 is located outside the orthographic projection of the first sub-pixel 21 on the flexible substrate 1, that is, in the direction perpendicular to the flexible substrate 1, the light blocking structure 31 does not block the first sub-pixel 21 from emitting light, so that the normal display is not affected. Further, the light blocking structure 31 has a distance between the front projection on the flexible substrate 1 and the front projection of the first sub-pixel 21 on the flexible substrate 1, and in some embodiments of the present disclosure, the minimum distance between the front projection of the light blocking structure 31 on the flexible substrate 1 and the front projection of the first sub-pixel 21 on the flexible substrate 1 may be 5 μm.

Meanwhile, each light blocking structure 31 can be located at least between a first sub-pixel 21 and the flat area S, and can block at least part of the light emitted by the first sub-pixel 21 from propagating towards the flat area S in the direction parallel to the bending area W, so as to reduce, even avoid, the light emitted by the bending area W from generating yellow bright edges at the edge of the flat area S, so as to reduce.

The light blocking layer 3 may block light generated from each first sub-pixel 21 to the flat region S by one-to-one correspondence of the respective light blocking structures 31; of course, only a portion of the light emitted from the first sub-pixel 21 to the flat region S may be blocked.

In some embodiments of the present disclosure, as shown in fig. 1, the display panel is a curved display panel, the number of flat areas S is one, and the edge of the inflection area W adjacent to the flat area S. The number of light blocking structures 31 is less than the number of first sub-pixels 21, and the density of light blocking structures 31 decreases in a direction away from the flat region S. Taking any inflection region W as an example, a plurality of regions may be divided into the inflection region W according to the distance from the boundary of the inflection region W and the flat region S, for example, a region having a distance from the boundary of the inflection region W and the flat region S smaller than a first designated distance is a first region; the distance between the junction of the bending area W and the flat area S is smaller than the first specified distance, and the area smaller than the second specified distance is a second area; the region at which the distance from the boundary of the inflection region W and the flat region S is greater than the second specified distance is the third region. The first specified distance is less than the second specified distance, which is less than the third specified distance.

Since the first area is closer to the flat area S, in the first area, the number of the light blocking structures 31 is not less than the number of the first sub-pixels 21, and at least one light blocking structure 31 that blocks the light propagating from the first sub-pixel 21 to the flat area S may be disposed on a side of each first sub-pixel 21 close to the flat area S.

In the second region, the number of the light blocking structures 31 is smaller than that of the first sub-pixels 21, the light blocking structures 31 are only arranged on one side of a part of the first sub-pixels 21 close to the flat region S, and compared with red light and green light, the wavelength of blue light is short, the energy is high, scattering and fluorescence effects are more likely to occur, so if the number of the light blocking structures 31 is smaller than that of the first sub-pixels 21, the light blocking structures 31 can be preferentially arranged on one side of the blue first sub-pixels 21c close to the flat region S.

In the third region, the light blocking structure 31 may not be provided.

In some embodiments of the present disclosure, the display panel is a curved display panel, the number of flat areas S is one, the number of light blocking structures 31 is not less than the number of first sub-pixels 21 at the edge of the bending area W adjacent to the flat areas S, and at least one light blocking structure 31 may be disposed on a side of each first sub-pixel 21 close to the flat areas S to block the light emitted from the first sub-pixels 21 to the flat areas S to the greatest extent.

In some embodiments of the present disclosure, the display panel is a foldable display panel, and the number of the bending regions W may be one, and the number of the flat regions S is two and distributed on both sides of the bending regions W. Both sides of each first sub-pixel 21, i.e. opposite to the two flat areas S, are provided with a light blocking structure 31. After folding, the edge can be prevented from yellowing regardless of which flat area S is used as the main display surface facing the user. Of course, one of the two flat areas S may be preset to face the main display surface of the user, and the other flat area S may be the back surface, and at this time, the light blocking structure 31 may be provided at a side of each of the first sub-pixels 21 near the flat area S as the main display surface.

As shown in fig. 1, since the first sub-pixel 21 closer to the flat region S causes greater interference to the flat region S, in some embodiments of the present disclosure, the inflection region W and the flat region S may be distributed in a row direction in which at least part of the light blocking structure 31 is located between the flat region S and the first sub-pixel 21 closest to the flat region S, thereby blocking at least light emitted from the first sub-pixel 21 closest to the flat region S toward the flat region S.

In some embodiments of the present disclosure, as shown in fig. 10, the inflection regions W and the flat regions S may be distributed along the row direction, and in the inflection regions W, the light blocking structures 31 are distributed in an array, and the light blocking structures 31 located in the same column in the column direction may be an integral structure, i.e., the same column of light blocking structures 31 may be connected into one whole, so as to improve the light blocking effect. Alternatively, in other embodiments of the present disclosure, as shown in fig. 9, the light blocking structures 31 in the same column may be distributed at intervals, but the size of the interval is not particularly limited herein.

Each of the light blocking structures 31 in the same column may extend in the column direction, may extend in a direction at an angle to the column direction, or may be of the shape shown in fig. 11 and 12 or other shapes, as long as they are distributed in the column direction.

It should be noted that, the column direction and the row direction refer to two different directions intersecting each other, and do not refer to a horizontal direction and a vertical direction, and those skilled in the art will recognize that, as the position of the display panel changes, the actual orientations of the row direction and the column direction may change.

The following structure of the structure display layer 2 exemplifies the light blocking layer 3:

as shown in fig. 6, in some embodiments of the present disclosure, the display layer 2 may include a driving layer 201 and a light emitting functional layer 202, wherein:

the driving layer 201 is disposed on one side of the flexible substrate 1, and may include a plurality of pixel driving circuits, where each sub-pixel includes one pixel driving circuit, and each pixel driving circuit includes at least one driving transistor, and the driving transistor is exemplified as a thin film transistor with a top gate structure: the driving layer 201 may include an active layer 2011, a gate insulating layer 2012, a gate electrode 2013, an insulating layer 2014, a capacitor electrode 2015, a dielectric layer 2016, and a source/drain layer, materials of the active layer 2011 may include low-temperature polysilicon, the active layer 2011, the gate electrode 2013, and the capacitor electrode 2015 face each other in a direction perpendicular to the flexible substrate 1, the gate electrode 2013 and the capacitor electrode 2015 may form a capacitor, and the source/drain layer includes a source electrode 2017 and a drain electrode 2018 and is connected to both ends of the active layer 2011.

In addition, the driving layer 201 may further include a planarization layer 2019 covering the source/drain layer and the dielectric layer 2016.

The light emitting functional layer 202 is disposed on a surface of the driving layer 201 facing away from the flexible substrate 1, and includes light emitting units corresponding to the pixel driving circuits one by one, and the light emitting units can be used as the first sub-pixels 21. The light emitting functional layer 202 may include a first electrode layer 2021, a pixel defining layer 2022, a light emitting layer 2023, and a second electrode 2024, wherein:

the first electrode layer 2021 and the pixel defining layer 2022 are both disposed on a surface of the driving layer 201 facing away from the flexible substrate 1, and include a plurality of first electrodes, where at least a portion of the first electrodes are exposed by the pixel defining layer 2022. The pixel definition layer 2022 may be used to define a plurality of light emitting units.

The light emitting layer 2023 is provided in a region of the first electrode layer 2021 exposed by the pixel defining layer 2022, and the light emitting layer 2023 may include at least a hole injecting layer, a hole transporting layer, a light emitting material layer, an electron transporting layer, and an electron injecting layer which are stacked in a direction away from the flexible substrate 1.

The second electrode 2024 covers the pixel defining layer 2022 and the light-emitting layer 2023, and by applying an electric signal to the first electrode and the second electrode 2024 of the first electrode layer 2021, the light-emitting layer 2023 can emit light.

Based on the display layer 2 of the above embodiment, the light blocking layer 3 may be disposed on the same layer as a part of the film layer of the first sub-pixel 21, as shown in fig. 7, in some embodiments of the present disclosure, the driving layer 201 may have a protrusion 20191 protruding in a direction away from the flexible substrate 1 through a gray-scale mask or other processes, and the first electrode layer 2021 is made of a reflective material, and the light blocking layer 3 includes an area where the first electrode layer 2021 covers the protrusion 20191, so that light may be blocked by the first electrode layer 2021 covering the protrusion 20191, and each light blocking structure 31 may include one and the first electrode layer 2021 covering the protrusion 20191. Meanwhile, the orthographic projection of the light emitting layer 2023 on the driving layer 201 is located outside the protruding portion 20191, so that the blocking effect of the light blocking structure 31 is ensured.

The thickness of the region of the planar layer 2019 where the protrusion 20191 is not formed may be 1 μm to 3 μm, and the thickness of the protrusion 20191 may be 1.2 to 3 times the thickness of the region where the protrusion 20191 is not formed, for example, 1.2 μm to 9 μm.

Further, the light blocking layer 3 may further include a supporting layer 200, and the protruding portion 20191 is provided on a surface of the supporting layer 200 facing away from the flexible substrate 1. The support layer 200 may be provided in the same layer as the source and drain layers of the display layer 2 in order to simplify the process. The planarization layer 2019 covers the source and drain layers and the support layer 200 and is protruded at a region corresponding to the support layer 200, forming a protrusion 20191. The support layer 200 may also use a light blocking material so that light may also be blocked.

Of course, the protruding portion 20191 is also formed on the flat layer 2019 without using the support layer 200.

As shown in fig. 8, in other embodiments of the present disclosure, the number of the support layers 200 and the planarization layers 2019 may be plural, for example, the support layer 200 includes a first support layer 200a and a second support layer 200b, the planarization layer 2019 includes a first planarization layer 2019a and a second planarization layer 2019b, wherein the first support layer 200a is disposed in the same layer as the source/drain layer, the first planarization layer 2019a covers the source/drain layer and the first support layer 200a, the second support layer 200b is located at a position of the first planarization layer 2019a corresponding to the first support layer 200a, the second planarization layer 2019b covers the first planarization layer 2019a and the second support layer 200b, and is protruded at a position corresponding to the second support layer 200b, forming a protrusion 20191, the first electrode layer 2021 may cover the protrusion 20191, and the first electrode layer 2021 covers a region of the protrusion 20191 as the light blocking structure 31.

Further, in order to increase the height of the light blocking structure 31, the second planar layer 2019b between the protruding portion 20191 and the light emitting layer 2023 may be at least partially removed, so as to form a groove, and the first electrode layer 2021 extends into the groove, which corresponds to increasing the height of the protruding portion 20191, thereby increasing the area of the first electrode layer 2021, which is beneficial to improving the light blocking effect.

In some embodiments of the present disclosure, as shown in fig. 6, the light blocking layer 3 may be located on a side of each first sub-pixel 21 facing away from the flexible substrate 1, for example: the display panel may further include an encapsulation layer 203, the encapsulation layer 203 covering the light emitting function layer 202, and the encapsulation layer 203 may have a single-layer or multi-layer structure, for example, the encapsulation layer 203 may include two inorganic layers and an organic layer between the two inorganic layers. The light-blocking layer 3 is provided on the surface of the encapsulation layer 203 facing away from the flexible substrate 1.

Further, the light blocking layer 3 may include a light absorbing layer 301 and a light reflecting layer 302, wherein:

the light absorbing layer 301 may be provided on a surface of the encapsulation layer 203 facing away from the flexible substrate 1. The material of the light absorbing layer 301 may include a light absorbing material such as manganese oxide. The light reflecting layer 302 may be a light reflecting metal material, which may cover the light absorbing layer 301.

Of course, the light blocking layer 3 may also have a single-layer structure, and may be made of black ink or other light-blocking material, and is not particularly limited herein.

Further, as shown in fig. 6, in some embodiments of the present disclosure, the display panel may further include a touch layer 204, which may be disposed on a surface of the encapsulation layer 203 facing away from the flexible substrate 1, for sensing a touch operation of a user and generating a touch signal. The touch layer 204 may include touch electrodes, and the specific touch principle is not specifically limited herein. The touch layer 204 may be disposed in the same layer as the light blocking layer 3.

As shown in fig. 6, in some embodiments of the present disclosure, the display panel may further include a polarizer 4 and a cover plate 5, where the polarizer 4 is disposed on a side of the touch layer 204 facing away from the flexible substrate 1, and the cover plate 5 may be made of a transparent material and disposed on a side of the polarizer 4 facing away from the flexible substrate 1. Furthermore, an insulating first separation layer 6 is provided between the polarizer 4 and the touch layer 204, and an insulating second separation layer 7 may be provided between the cover plate 5 and the polarizer 4.

The embodiments of the present disclosure further provide a display device, where the display device includes the display panel of any of the above embodiments, and the specific structure and the beneficial effects of the display panel are described in detail in the foregoing embodiments of the display panel, which are not described herein again. The display device may be a mobile phone, a tablet computer, a television, etc., and is not particularly limited herein.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A display panel, comprising:

a flexible substrate;

the light blocking layer is positioned in the bending region and comprises a plurality of light blocking structures, the orthographic projection of each light blocking structure on the flexible substrate is positioned outside the orthographic projection of the first sub-pixel on the flexible substrate, and each light blocking structure is positioned between at least one first sub-pixel and the flat region so as to block at least part of light emitted by the first sub-pixel from transmitting to the flat region;

the number of the flat areas is one, the number of the light blocking structures is smaller than the number of the first sub-pixels, and the density of the light blocking structures decreases in a direction away from the flat areas.

2. The display panel according to claim 1, wherein the folded regions and the flat regions are distributed in a row direction, the light blocking structures are arrayed, and the light blocking structures located in the same column in a column direction are integrally structured or are spaced apart.

3. The display panel of claim 1, wherein the display layer comprises:

the driving layer is arranged on one side of the flexible substrate;

the packaging layer covers the light-emitting functional layer;

4. The display panel of claim 3, wherein the display layer further comprises:

5. A display panel according to claim 3, wherein the light blocking layer comprises:

and the reflecting layer covers the light absorbing layer.

6. The display panel of claim 1, wherein the display layer comprises:

and a second electrode layer covering the light emitting layer.

7. The display panel according to claim 6, wherein the light blocking layer further comprises:

8. The display panel of claim 7, wherein the driving layer comprises:

an active layer arranged on one side of the flexible substrate;

a gate insulating layer covering the active layer;

an insulating layer covering the gate electrode and the gate insulating layer;

a dielectric layer covering the capacitor electrode and the insulating layer;

9. A display device comprising the display panel of any one of claims 1-8.