Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device.The display panel comprises a display substrate, the display substrate comprises a non-display area and a display area at least partially surrounding the non-display area, and the non-display area comprises a light-transmitting area and an edge area close to the display area; the collecting device is located in the light transmitting area and arranged on the side, away from the light emitting direction, of the display substrate, and the collecting direction of the collecting device faces the display substrate; the light shielding layer is located in the edge area and arranged in the display substrate, and the side, away from the light emitting direction of the display substrate, of the light shielding layer obliquely extends from the end close to the display area to the end close to the light transmitting area to the direction, away from the light emitting direction, of the display substrate.

Description

TECHNICAL FIELD

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

[0002] With the development of display technology, the integrated functions of display screens are more and more, such as integrating photographing, infrared sensing function and the like in display screens, and with the increase of application scenarios of display screens, the requirements for different functions are more and more strict, such as higher and higher requirements for photographing quality and infrared sensing function.

[0003] For a collection device that needs to realize corresponding functions according to ambient light, for example, the front camera will have the problem of light leakage when taking pictures, which will cause color distortion of the picture and affect the photographing effect. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a display panel and a display device to solve the technical problem of light leakage caused by the large-angle light emission of the display area of the display panel reflected to the collection device through the display substrate, while not affecting the performance of the collection device. The specific technical solution is as follows:

[0005] In a first aspect of the present application, a display panel is provided, comprising a display substrate, the display substrate comprising a non-display area and a display area at least partially surrounding the non-display area, the non-display area comprising a light transmission area and an edge area close to the display area;

[0006] A collection device is located in the light transmission area and is arranged on the side of the display substrate away from the light emission direction, and the collection direction of the collection device is towards the display substrate;

[0007] An optical shielding layer is located in the edge area and is arranged in the display substrate, and the side of the optical shielding layer away from the light emission direction of the display substrate is inclined to extend towards the display substrate away from the light emission direction from one end close to the display area to one end close to the light transmission area.

[0008] In some embodiments, the side of the optical shielding layer away from the light emission direction of the display substrate has an inclination angle, and the inclination angle is adapted to the collection viewing angle of the collection device.

[0009] In some embodiments, the display substrate comprises a cover plate, the side of the cover plate away from the light emission direction is provided with a groove, the bottom of the groove is inclined to extend towards the cover plate away from the light emission direction from one end close to the display area to one end close to the light transmission area, and the optical shielding layer comprises a first optical shielding layer, the first optical shielding layer is arranged on the bottom of the groove.

[0010] In some embodiments, the first light-shielding layer is a plurality of layers, the plurality of layers of the first light-shielding layer are arranged side by side along the bottom of the groove to the opening of the groove, and the plurality of layers of the first light-shielding layer are parallel to each other, and a transparent filling layer is arranged between adjacent first light-shielding layers.

[0011] In some embodiments, the transparent filling layer has the same refractive index as the cover plate.

[0012] In some embodiments, the display substrate comprises a cover plate and a connecting layer arranged on a side of the cover plate away from the light-emitting direction, the light-shielding layer comprises a second light-shielding layer, the second light-shielding layer is embedded on a side of the connecting layer facing the cover plate, and a side of the second light-shielding layer away from the light-emitting direction of the cover plate is inclined to extend away from the light-emitting direction of the cover plate from one end close to the display area to one end close to the light-transmitting area.

[0013] In some embodiments, the display substrate comprises a cover plate and a connecting layer arranged on a side of the cover plate away from the light-emitting direction, the light-shielding layer comprises a second light-shielding layer and at least one layer of first light-shielding layer, a groove is arranged on a side of the cover plate away from the light-emitting direction, the bottom of the groove is inclined to extend away from the light-emitting direction of the cover plate from one end close to the display area to one end close to the light-transmitting area, and at least one layer of the first light-shielding layer is arranged side by side along the bottom of the groove to the opening of the groove, and parallel to the plane in which the bottom of the groove is located.

[0014] The second light-shielding layer is embedded on a side of the connecting layer facing the cover plate, and a side of the second light-shielding layer away from the light-emitting direction of the cover plate is inclined to extend away from the light-emitting direction of the cover plate from one end close to the display area to one end close to the light-transmitting area.

[0015] In some embodiments, the first light-shielding layer is parallel to a side of the second light-shielding layer away from the light-emitting direction of the cover plate.

[0016] In some embodiments, in the display area, a light-emitting device is arranged on a side of the display substrate away from the light-emitting direction, the light-emitting device has a light-emitting angle, and the light-shielding layer is at least partially located in the light-emitting angle of the light-emitting device facing the display substrate located in the light-transmitting area and the edge area.

[0017] In a second aspect, the present application provides a display device, characterized by comprising the display panel of any one of the first aspect.

[0018] The embodiments of the present application have the following beneficial effects:

[0019] The display panel and the display device provided by the embodiment of the present application have the light shielding layer arranged in the edge area, which effectively avoids blocking the normal light emission of the display area and effectively avoids blocking the collection function of the collector in the light transmission area. Further, the light shielding layer is arranged in an inclined manner on the side away from the light emission direction of the display substrate, the light shielding layer blocks the large-angle light from the display area, effectively avoids the large-angle light from the display area from being emitted to the position of the display substrate corresponding to the edge area and the light transmission area, reflected on the surface of the display substrate to the position of the collector, causing light leakage and affecting the function of the collector. Meanwhile, the light shielding layer arranged in an inclined manner reduces the influence on the field of view of the collector during the working process of the collector, that is, the field of view of the collector collects in a large field of view through the direction parallel to the light shielding layer, thereby reducing the influence on the function of the collector.

[0020] Of course, implementing any product or method of the present application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can also be obtained by those skilled in the art based on these drawings.

[0022] Figure 1 It is a top view of the display panel of the embodiment of the present application.

[0023] Figure 2 It is a sectional view of a display panel of the embodiment of the present application.

[0024] Figures 3a to 3e It is a process schematic diagram of forming a groove on the cover plate of the embodiment of the present application.

[0025] Figures 4a to 4e It is a preparation process schematic diagram of the first light shielding layer of the embodiment of the present application.

[0026] Figure 5 It is another sectional view of a display panel of the embodiment of the present application.

[0027] Figures 6a to 6d It is a preparation process schematic diagram of the second light shielding layer of the embodiment of the present application.

[0028] Figure 7 It is still another sectional view of a display panel of the embodiment of the present application.

[0029] The reference signs are as follows: display area AA, light transmission area BB, edge area CC, display substrate 1, cover plate 11, connecting layer 12, groove 13, transparent filling layer 14, collection device 2, light shielding layer 3, first light shielding layer 31, second light shielding layer 32, positive photoresist 41, metal mesh shielding jig 42, and negative photoresist 43. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art based on the present application belong to the scope of protection of the present application.

[0031] The ordinal numbers "first", "second", "third" and the like in the specification are set to avoid confusion of components, and are not intended to limit in quantity. The "multiple" in the present application can include two and more than two quantities.

[0032] In the specification, the words indicating the orientation or position relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are used to refer to the position relationship of the components with reference to the drawings, and are only used for the convenience of description of the specification and simplification of the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The position relationship of the components is appropriately changed according to the direction of describing the components. Therefore, it is not limited to the words described in the specification, and can be appropriately changed according to the situation.

[0033] In the specification, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate, or the communication inside two elements. For those of ordinary skill in the art, the meaning of the above terms in the present application can be understood according to the situation.

[0034] Moreover, the term "including," "containing" or any other variation thereof, is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0035] In the present specification, "parallel" refers to a state in which two straight lines form an angle of -10° or more and 10° or less, and thus can include a state in which the angle is -5° or more and 5° or less. In addition, "perpendicular" refers to a state in which two straight lines form an angle of 80° or more and 100° or less, and thus can include a state in which the angle is 85° or more and 95° or less.

[0036] As described in the above background art, for a collection device that needs to implement a corresponding function according to ambient light, such as a front camera, there is a problem of light leakage during photographing. The front camera is generally arranged in a non-display area and is arranged on the side of the cover plate away from the light-emitting direction through a hole. Through optical principles, it is found that the main reason for the light leakage is that, during the light-emitting display of the display area, the light is not perpendicular to the cover plate, and the light with a large viewing angle is reflected to the position of the front camera through the surface of the cover plate, thereby causing light leakage. The front camera cannot accurately collect ambient light to implement photographing or video shooting, thereby causing color distortion of the photo.

[0037] Similarly, the same is true for an infrared sensor. During the light-emitting display of the display area, the light with a large viewing angle is reflected to the position of the infrared sensor through the surface of the cover plate, which also affects the sensitivity of the infrared sensor.

[0038] However, directly shielding the light with a large angle of the display area will affect the display effect of the display panel. In short, the user cannot effectively view the display content of the display panel at a large angle. Further, shielding the side of the front camera facing the display area can effectively avoid light leakage, but reduces the field of view of the front camera and affects normal photographing of the front camera.

[0039] Therefore, it is necessary to effectively avoid light leakage while not affecting or as little as possible affecting the field of view of the front camera.

[0040] Based on this, reference is made to Figure 1 , Figure 2 , Figure 5 and Figure 7The display panel of the embodiment of the present application comprises a display substrate 1, the display substrate 1 comprises a non-display area and a display area AA surrounding the non-display area at least partially, the non-display area comprises a light-transmitting area BB and an edge area CC close to the display area AA; a collection device 2 is located in the light-transmitting area BB and is arranged on the side of the display substrate 1 away from the light-emitting direction, and the collection direction of the collection device 2 is towards the display substrate 1; a light-shielding layer 3 is located in the edge area CC and is arranged in the display substrate 1, and the side of the light-shielding layer 3 away from the light-emitting direction of the display substrate 1 is arranged obliquely from one end close to the display area AA to one end close to the light-transmitting area BB towards the side of the display substrate 1 away from the light-emitting direction.

[0041] In the example embodiment, the display area can surround the non-display area, and the display area can also surround the non-display area semi-peripherally.

[0042] In the example embodiment, the display substrate 1 defines the display area AA and the non-display area, and the non-display area defines the light-transmitting area BB and the edge area CC, wherein the display area AA, the light-transmitting area BB and the edge area CC can be demarcated by the dashed lines in the figure. Figure 1

[0043] In the example embodiment, the display substrate 1 is a substrate arranged opposite to the substrate substrate in the display panel, and the display substrate 1 can be a flexible substrate, and the material of the flexible substrate can comprise one or more of PET (Polyethyleneterephthalate), PEN (Polyethylene naphthalate), PI (Polyimide), YPI (Yellow Polyimide) and the like, for example, and the display substrate 1 can also be a rigid substrate, and the material of the rigid substrate can be glass and the like, for example.

[0044] In the example embodiment, the edge area is located at the edge of the display area, and can effectively support and protect the edge of the display area, effectively avoiding the edge of the display area extending to the light-transmitting area.

[0045] In the example embodiment, the diameter of the non-display area can be about 4.3mm-4.4mm, and correspondingly, the width of the edge area can be 0.4mm-0.5mm.

[0046] In the example embodiment, the collection device 2 can comprise a front camera, an infrared sensor and the like. The collection direction of the collection device 2 is towards the display substrate 1, facilitating the collection device 2 to collect information, such as taking a picture or infrared sensing and the like, and in the embodiment, the collection device 2 is described as a front camera.

[0047] In the example embodiment, the light-shielding layer 3 can be black ink.​

[0048] In the embodiment, the light shielding layer 3 is arranged in the edge area, which effectively avoids blocking the normal light emission of the display area AA and effectively avoids blocking the collection function of the collector 2 in the light transmission area BB. Further, the light shielding layer 3 is arranged to be inclined away from the light emission direction of the display substrate 1, and the light shielding layer 3 blocks the light rays with large viewing angles from the display area AA, effectively avoiding the light rays with large viewing angles from the display area AA to be emitted to the position of the display substrate 1 corresponding to the edge area CC and the light transmission area BB, and then reflected on the surface of the display substrate 1 to the position of the collector 2, which causes light leakage and affects the function of the collector 2. Meanwhile, the inclined arrangement of the light shielding layer 3 reduces the influence on the field of view of the collector 2 during the working process of the collector 2, that is, the field of view of the collector 2 collects in a large field of view through a direction parallel to the light shielding layer 3, thereby reducing the influence on the function of the collector 2.

[0049] In some embodiments, the side of the light shielding layer 3 away from the light emission direction of the display substrate 1 has an inclination angle, and the inclination angle is adapted to the collection viewing angle of the collector 2.

[0050] In the example embodiment, the inclination angle represents that the angle between the side of the light shielding layer 3 away from the light emission direction of the display substrate 1 and the extension direction of the display substrate 1 can be 20°-35°, for example, 20°, 25°, 30°, etc. Correspondingly, the collection viewing angle of the collector 2 can be 110°-140°, for example, 110°, 120°, 130°, etc. The large viewing angle of the collector 2 is adapted to the side of the light shielding layer 3 away from the light emission direction of the display substrate 1, so as to realize effective ambient light collection. For example, the large field of view of the front camera can be parallel to the side of the light shielding layer 3 away from the light emission direction of the display substrate 1 for shooting or photographing.

[0051] It should be noted that when the inclination angle is 20°, the collection viewing angle of the collector 2 is 140°, and when the inclination angle is 35°, the collection viewing angle of the collector 2 is 110°.

[0052] In the embodiment, the inclination angle of the light shielding layer 3 is adapted to the collection viewing angle of the collector 2, so as to reduce the influence on the field of view of the collector 2 during the working process of the collector 2, that is, the field of view of the collector 2 collects in a large field of view through a direction parallel to the light shielding layer 3, thereby reducing the influence on the function of the collector 2.

[0053] In some embodiments, as shown in Figure 2 The display substrate 1 includes a cover plate 11, and the side of the cover plate 11 away from the light emission direction is provided with a groove 13. The bottom of the groove 13 is inclined to extend away from the light emission direction from one end close to the display area to the other end close to the light transmission area. The light shielding layer 3 includes a first light shielding layer 31 arranged on the bottom of the groove 13.

[0054] In an exemplary embodiment, a groove 13 can be formed on the side of the cover plate 11 away from the light emission direction by laser or etching.

[0055] In an exemplary embodiment, the depth of the groove 13 can be between 40 μm and 80 μm.

[0056] In an exemplary embodiment, the inclination angle of the bottom of the groove 13 can be 20° to 35°.

[0057] In this embodiment, by setting a groove 13 and tilting it at the bottom, the first light-shielding layer 31 is tilted, which effectively prevents the large-angle light from reaching the edge and light-transmitting areas and being reflected by the cover plate 11 to the location of the acquisition device 2, thus avoiding light leakage and affecting the function of the acquisition device 2. At the same time, the tilted first light-shielding layer 31 reduces the impact on the field of view of the acquisition device 2 during its operation. That is, the field of view of the acquisition device 2 is collected with a large field of view through a direction parallel to the first light-shielding layer 31, thereby reducing the impact on the function of the acquisition device 2.

[0058] In an exemplary implementation, reference Figure 5 As shown, a method for etching the groove 13 is provided. First, the back side of the cover plate 11 is cleaned, that is, the side of the cover plate 11 away from the light emission direction is cleaned to ensure uniform etching in the future. Then, a 4μm~6μm positive photoresist 41 is coated on the back side of the cover plate 11. Then, using a grayscale mask or laser direct writing process, gradient exposure is performed in the designated groove 13 area, that is, the exposure amount in the groove 13 area gradually changes (the light intensity changes from strong to weak). After development, the photoresist in the groove 13 area forms a slope shape, that is, the photoresist surface in the groove 13 area is tilted. The tilt angle can be controlled by exposure metering and development time. Then, by wet etching, the side of the cover plate 11 away from the light emission direction is immersed in the etching solution. The etching solution etches the cover plate 11 quickly, while the etching solution etches the photoresist slowly. By controlling the etching time, the slope angle can be increased. Based on the tilt angle of the photoresist surface, the bottom slope of the groove 13 is formed. Then, the remaining photoresist is cleaned with a cleaning solution, so that the side of the cover plate 11 away from the light emission direction forms the groove 13.

[0059] In an exemplary embodiment, the etching solution may be hydrofluoric acid (HF).

[0060] In an exemplary embodiment, the cleaning solution may be sodium hydroxide or acetone, etc.

[0061] In some embodiments, reference Figure 7As shown, the first light shielding layer 31 is multi-layered, the multi-layered first light shielding layer 31 is arranged side by side along the bottom of the groove 13 to the opening of the groove 13, and the multi-layered first light shielding layer 31 is parallel to each other, and the transparent filling layer 14 is arranged between adjacent first light shielding layers 31.

[0062] In the example embodiment, the first light shielding layer 31 can be 2 layers, 3 layers, 4 layers, and so on.

[0063] In this embodiment, by arranging the first light shielding layer 31 in multiple layers and parallel to each other, the first light shielding layer 31 is used to shield the light rays of different angles emitted from the display area to the edge area and the light transmission area from the bottom of the groove 13 to the opening of the groove 13, effectively avoiding the large-angle light rays from being emitted to the positions of the edge area and the light transmission area and then being reflected to the position of the collection device 2 through the surface of the cover plate 11, causing light leakage and affecting the function of the collection device 2. At the same time, the first light shielding layer 31 is arranged obliquely, and the transparent filling layer 14 is arranged between adjacent light shielding layers. During the operation of the collection device 2, the field of view angle of the collection device 2 can collect ambient light and the like through the transparent light shielding layer, reducing the influence of the first light shielding layer 31 on the field of view angle of the collection device 2, that is, the field of view angle of the collection device 2 is collected in the direction parallel to the first light shielding layer 31, thereby reducing the influence on the function of the collection device 2.

[0064] In the example embodiment, the transparent filling layer 14 can be high-transparency ultraviolet light-cured acrylic resin.

[0065] In the example embodiment, a first light shielding layer 31 preparation method is provided, as shown in Figure 1 As shown, the cover plate 11 forming the groove 13 is fixed on a vacuum chuck, the groove 13 faces upward, and an integrated metal screen shielding jig 42 is fixed above the cover plate 11. The integrated metal screen shielding jig 42 is generally composed of a metal outer ring, fine metal spokes, and a center disc. The annular mesh formed between the fine metal spokes is aligned with the groove 13. An ink is sprayed on the top of the integrated metal screen shielding jig by using a vertical top spraying process, and then the ink is cured at 120°C for 3 minutes. The cured ink forms the first light shielding layer 31. The transparent filling layer 14 is filled into the groove 13 by a vacuum slot coating process, and then a second layer of the first light shielding layer 31 is sprayed by using the above-mentioned vertical top spraying process. In this way, the number of layers of the first light shielding layer 31 is set according to the requirements, and finally the transparent filling layer 14 protruding from the side of the cover plate 11 away from the light emission direction is ground and flattened by a grinding process.

[0066] It is understandable that, since the material of the transparent filling layer 14 has a certain fluidity, in order to form an inclined slope on the side of the transparent filling layer 14 away from the bottom of the groove 13 during the preparation of the transparent filling layer 14, the cover plate 11 can be tilted at a certain angle, which is the same as the tilt angle of the first light-shielding layer 31. The transparent filling layer 14 is filled on the downward tilting side first, and the filling layer on this side is cured by ultraviolet light at the same time. Then, the unfilled position is tilted at a certain angle, and the preparation of the transparent filling layer 14 is repeated until the transparent filling layer 14 of the same layer is completed.

[0067] In some embodiments, the transparent filler layer 14 has the same refractive index as the cover plate 11.

[0068] In an exemplary embodiment, the refractive index of the transparent filler layer 14 can be around 1.52.

[0069] In this embodiment, the acquisition device 2 is oriented towards the display substrate 1. Ambient light includes light reflected from objects in the environment. Ambient light passes through the display substrate 1 and enters the acquisition device 2. By utilizing the fact that the transparent filling layer 14 and the cover plate 11 have the same refractive index, the different refractive indices of the ambient light entering the acquisition device 2 effectively prevent the performance of the acquisition device 2 from being affected. For example, if the acquisition device 2 is used as a front-facing camera, it needs to acquire ambient light to take pictures. At the same time, the refractive index of objects at different positions entering the front-facing camera at different angles of the acquisition device 2 may be different, which may cause the image captured by the front-facing camera to be different at a large field of view and a small field of view, thus affecting the quality of the photo.

[0070] In some embodiments, reference Figure 2 As shown, the first light-shielding layer 31 has a tilt angle, which is adapted to the acquisition angle of the acquisition device 2.

[0071] By adapting the tilt angle of the first light-shielding layer 31 to the acquisition angle of the acquisition device 2, the impact on the field of view of the acquisition device 2 is reduced during its operation. That is, the field of view of the acquisition device 2 is acquired with a large field of view through a direction parallel to the first light-shielding layer 31, thereby reducing the impact on the function of the acquisition device 2.

[0072] In some embodiments, reference Figures 3a to 3e As shown, the display substrate 1 includes a cover plate 11 and a connecting layer 12 disposed on the side of the cover plate 11 away from the light emission direction. The light-shielding layer 3 includes a second light-shielding layer 32, which is embedded in the side of the connecting layer 12 facing the cover plate 11. The side of the second light-shielding layer 32 away from the light emission direction of the display substrate 1 extends obliquely towards the cover plate 11 away from the light emission direction from one end near the display area to one end near the light-transmitting area.

[0073] In an example embodiment, the connecting layer 12 can be an optically clear adhesive (OCA).

[0074] In an example embodiment, the second light-blocking layer 32 can also be black ink.

[0075] In the present embodiment, by arranging the connecting layer 12 on the side of the cover plate 11 facing away from the light-out direction, and arranging the second light-blocking layer 32 on the connecting layer 12 to block the large-angle light from the display area, the large-angle light is effectively prevented from exiting the position of the cover plate 11 corresponding to the edge area and the light-transmitting area, and the light from the display area is effectively prevented from being reflected by the surface of the cover plate 11 to the position of the collection device 2, thereby avoiding the light leakage. Meanwhile, the second light-blocking layer 32 is arranged to be inclined on the side facing away from the light-out direction, thereby reducing the influence on the field of view of the collection device 2 during the operation of the collection device 2, i.e., the collection device 2 collects the large-angle field of view in a direction parallel to the light-blocking layer, thereby reducing the influence on the function of the collection device 2.

[0076] In an example embodiment, the present application provides a preparation method of the second light-blocking layer 32, as shown in Figure 2 First, the side of the cover plate 11 facing away from the light-out direction is cleaned, and then a layer of black ink negative photoresist 43 with a thickness of 2-3 μm is coated on the side of the cover plate 11 facing away from the light-out direction by using a spin coating process. A gray-tone mask or a laser direct writing process is used to perform gradient exposure on the second light-blocking layer 32 area, and the exposure amount of the second light-blocking layer 32 area is gradient (the light intensity changes from strong to weak), and after development, the photoresist in the second light-blocking layer 32 area forms a sloped second light-blocking layer 32. The angle of the slope can be controlled by the exposure dose and the development time. Then, a layer of connecting layer 12 is spin-coated on the surface of the second light-blocking layer 32, which can not only realize the connection with the cover plate 11, but also can planarize the sloped second light-blocking layer 32. The connecting layer 12 is cured at high temperature and then polished to a certain degree.

[0077] In an example embodiment, the thickness of the connecting layer 12 can be 15-20 μm.

[0078] In some embodiments, as shown in Figures 4a to 4e The side of the second light-blocking layer 32 facing away from the light-out direction of the display substrate 1 has an inclination angle, and the inclination angle is adapted to the collection angle of the collection device 2.

[0079] In the example embodiment, the tilt angle represents an angle between a side of the second light shielding layer 32 facing away from the light-out direction of the display substrate 1 and an extension direction of the display substrate 1, which can be 20°-35°, for example, 20°, 25°, 30°, and the like. Correspondingly, the collection angle of the collection device 2 can be 110°-140°, for example, 110°, 120°, 130°, and the like. The large collection angle of the collection device 2 is adapted to the side of the second light shielding layer 32 facing away from the light-out direction of the display substrate 1, so as to realize effective ambient light collection, for example, the large field angle of the front camera is parallel to the side of the second light shielding layer 32 facing away from the light-out direction of the display substrate 1 to take a picture or make a video.

[0080] It should be noted that when the tilt angle is 20°, the collection angle of the collection device 2 is 140°, and when the tilt angle is 35°, the collection angle of the collection device 2 is 110°.

[0081] In the example embodiment, the tilt angle of the second light shielding layer 32 is adapted to the collection angle of the collection device 2, so as to reduce the influence on the field angle of the collection device 2 during the working process of the collection device 2, that is, the field angle of the collection device 2 is collected through the large field angle parallel to the side of the second light shielding layer 32 facing away from the light-out direction, so as to reduce the influence on the function of the collection device 2.

[0082] In some embodiments, referring to Figure 2 Figure 5 Figures 6a to 6d Figure 5 Figure 7 As shown, the display substrate 1 includes a cover plate 11 and a connecting layer 12 disposed on a side of the cover plate 11 facing away from the light-out direction. The light shielding layer 3 includes at least one first light shielding layer 31 and a second light shielding layer 32. The side of the cover plate 11 facing away from the light-out direction is provided with a groove 13. The bottom of the groove 13 extends obliquely from one end close to the display area to one end close to the light-transmitting area toward the side of the cover plate 11 facing away from the light-out direction. The at least one first light shielding layer 31 is disposed along the bottom of the groove 13 to the opening of the groove 13 and is parallel to the plane in which the bottom of the groove 13 lies. The second light shielding layer 32 is embedded on the side of the connecting layer 12 facing the cover plate 11, and the side of the second light shielding layer 32 facing away from the light-out direction of the cover plate 11 extends obliquely from one end close to the display area to one end close to the light-transmitting area toward the side of the cover plate 11 facing away from the light-out direction.

[0083] In the example embodiment, the first light shielding layer 31 and the second light shielding layer 32 are both black ink.

[0084] In this embodiment, in combination with the above two embodiments, by setting the groove 13, and at the same time, the bottom of the groove 13 is inclined, the first light shielding layer 31 is inclined by the inclined setting of the bottom of the groove 13, and at the same time, by at least one layer of parallel first light shielding layer 31, the different angle light rays emitted from the display area to the edge area and the light transmission area are shielded by the first light shielding layer 31 from the bottom of the groove 13 to the opening of the groove 13, effectively avoiding the large angle light rays from being emitted to the positions where the edge area and the light transmission area are located, and after being reflected on the surface of the cover plate 11 to the position where the collection device 2 is located, causing light leakage, affecting the function of the collection device 2, and at the same time, the first light shielding layer 31 is inclined, and the transparent filling layer 14 is provided between the adjacent light shielding layers. During the working process of the collection device 2, the field of view angle of the collection device 2 can collect ambient light and the like through the transparent light shielding layer, thereby reducing the influence of the first light shielding layer 31 on the field of view angle of the collection device 2, that is, the field of view angle of the collection device 2 collects a large field of view angle in a direction parallel to the first light shielding layer 31, thereby reducing the influence on the function of the collection device 2. Further, the connecting layer 12 is provided on the side of the cover plate 11 away from the light emitting direction, and the second light shielding layer 32 is provided on the connecting layer 12 to block the large angle light rays from the display area, effectively avoiding the large angle light rays from being emitted to the positions where the cover plate 11 corresponding to the edge area and the light transmission area is located, effectively avoiding the light rays from the display area from being reflected on the surface of the cover plate 11 to the position where the collection device 2 is located, further reducing the light leakage, and at the same time, the second light shielding layer 32 is inclined on the side away from the light emitting direction. During the working process of the collection device 2, the influence on the field of view angle of the collection device 2 is reduced, that is, the field of view angle of the collection device 2 collects a large field of view angle in a direction parallel to the light shielding layer, thereby reducing the influence on the function of the collection device 2.

[0085] In some embodiments, the first light shielding layer 31 is parallel to the side of the second light shielding layer 32 away from the light emitting direction of the display substrate 1.

[0086] It can be understood that the field of view angle of the collection device 2 is generally fixed. In the case that the collection device 2 has a fixed field of view angle, during the working process of the collection device 2, the field of view angle of the collection device 2 can collect ambient light and the like through the first light shielding layer 31 and the side of the second light shielding layer 32 away from the light emitting direction, thereby reducing the influence of the first light shielding layer 31 and the second light shielding layer 32 on the field of view angle of the collection device 2, that is, the field of view angle of the collection device 2 collects a large field of view angle in a direction parallel to the first light shielding layer 31 and the side of the second light shielding layer 32 away from the light emitting direction, thereby reducing the influence on the function of the collection device 2.

[0087] In some embodiments, the first light shielding layer 31 and the second light shielding layer 32 have an inclination angle on the side away from the light emitting direction of the cover plate 11, and the inclination angle is adapted to the collection viewing angle of the collection device 2.

[0088] In the example embodiment, the tilt angle represents an angle between a side of the first light shielding layer 31 and the second light shielding layer 32 facing away from the light emission direction of the display substrate 1 and an extension direction of the display substrate 1, which can be 20°-35°, for example, 20°, 25°, 30°, and the like. Correspondingly, the collection angle of the collection device 2 can be 110°-140°, for example, 110°, 120°, 130°, and the like. The large viewing angle of the collection device 2 is adapted to the side of the first light shielding layer 31 and the second light shielding layer 32 facing away from the light emission direction of the display substrate 1 to achieve effective ambient light collection. For example, the large field angle of the front camera can be parallel to the side of the first light shielding layer 31 and the second light shielding layer 32 facing away from the light emission direction of the display substrate 1 to take pictures or videos.

[0089] It should be noted that when the tilt angle is 20°, the collection angle of the collection device 2 is 140°, and when the tilt angle is 35°, the collection angle of the collection device 2 is 110°.

[0090] In the example embodiment, the tilt angle of the side of the first light shielding layer 31 and the second light shielding layer 32 facing away from the light emission direction of the cover plate 11 is adapted to the collection angle of the collection device 2 to reduce the influence on the field angle of the collection device 2 during the operation of the collection device 2, that is, the field angle of the collection device 2 is collected through the large field angle parallel to the side of the first light shielding layer 31 and the second light shielding layer 32 facing away from the light emission direction, thereby reducing the influence on the function of the collection device 2.

[0091] In some embodiments, on the display area, the side of the display substrate 1 facing away from the light emission direction is provided with a light emitting device, and the light emitting device has a light emitting angle. The light shielding layer is at least partially located in the light emitting angle of the light emitting device facing the display substrate 1 located in the light transmission area and the edge area.

[0092] In the example embodiment, for OLED (Organic Light-Emitting Diode), the light emitting device can be an organic light emitting layer, and for LCD (Liquid Crystal Display), the light emitting device can be a backlight source or a side light source.

[0093] It can be understood that the light emitting device has different light emitting angles, and therefore the light emitting device emits different light rays to the display substrate 1 located in the light transmission area and the edge area. The light shielding layer cannot necessarily shield all the light rays. By blocking the large angle light rays from the display area through the light shielding layer, the large angle light rays can be effectively prevented from being emitted to the display substrate 1 located in the edge area and the light transmission area, the reflection of the light rays on the surface of the display substrate 1 to the position of the collection device 2 is reduced, the light leakage is reduced, and the function of the collection device 2 is effectively avoided,

[0094] Based on the same inventive concept, the embodiment of the present application provides a display device comprising the display panel provided by any of the above embodiments. In some exemplary embodiments, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital camera, a navigator, or the like, and the present embodiment does not make a specific limitation thereto.

[0095] Each of the embodiments in the specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments.

[0096] The above description is merely preferred embodiments of the present application, and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized by, The display substrate comprises a non-display area and a display area surrounding the non-display area, the non-display area comprises a light-transmitting area and an edge area close to the display area; The collecting device is arranged on the light-transmitting area and on the side of the display substrate away from the light-emitting direction, and the collecting direction of the collecting device is towards the display substrate; The light-shielding layer is arranged in the edge area and on the side of the display substrate away from the light-emitting direction, and the side of the light-shielding layer away from the light-emitting direction is inclined from the end close to the display area to the end close to the light-transmitting area.

2. The display panel of claim 1, wherein, The side of the light-shielding layer away from the light-emitting direction has an inclination angle, and the inclination angle is adapted to the collection angle of the collecting device.

3. The display panel of claim 1, wherein, The display substrate comprises a cover plate, the side of the cover plate away from the light-emitting direction is provided with a groove, the bottom of the groove is inclined from the end close to the display area to the end close to the light-transmitting area, and the light-shielding layer comprises a first light-shielding layer arranged on the bottom of the groove.

4. The display panel of claim 3, wherein, The first light-shielding layer is a plurality of layers, the plurality of layers of the first light-shielding layer are arranged side by side along the bottom of the groove to the opening of the groove, and the plurality of layers of the first light-shielding layer are parallel to each other, and a transparent filling layer is arranged between adjacent first light-shielding layers.

5. The display panel of claim 4, wherein, The transparent filling layer has the same refractive index as the cover plate.

6. The display panel of claim 1, wherein, The display substrate comprises a cover plate and a connecting layer arranged on the side of the cover plate away from the light-emitting direction, the light-shielding layer comprises a second light-shielding layer, the second light-shielding layer is embedded on the side of the connecting layer towards the cover plate, and the side of the second light-shielding layer away from the light-emitting direction is inclined from the end close to the display area to the end close to the light-transmitting area.

7. The display panel of claim 1, wherein, The display substrate comprises a cover plate and a connecting layer arranged on the side of the cover plate away from the light-emitting direction, the light-shielding layer comprises a second light-shielding layer and at least one first light-shielding layer, the side of the cover plate away from the light-emitting direction is provided with a groove, the bottom of the groove is inclined from the end close to the display area to the end close to the light-transmitting area, and at least one first light-shielding layer is arranged side by side along the bottom of the groove to the opening of the groove, and parallel to the plane in which the bottom of the groove is located. The second light-shielding layer is embedded on the side of the connecting layer towards the cover plate, and the side of the second light-shielding layer away from the light-emitting direction is inclined from the end close to the display area to the end close to the light-transmitting area.

8. The display panel of claim 7, wherein, The first light-shielding layer is parallel to the side of the second light-shielding layer away from the light-emitting direction of the cover plate.

9. The display panel of claim 1, wherein, In the display area, the side of the display substrate away from the light-emitting direction is provided with a light-emitting device, the light-emitting device has a light-emitting angle, and the light-shielding layer is at least partially located in the light-emitting angle of the light-emitting device towards the display substrate located in the light-transmitting area and the edge area.

10. A display device, characterized by comprising: The display panel comprises any one of claims 1 to 9.

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