Display panel and electronic equipment

Abstract

The embodiment of the invention provides a display panel and electronic equipment, and relates to the technical field of display, the display panel comprises a hole area, a display area and a transition area located between the hole area and the display area, and the transition area surrounds at least part of the hole area; the display panel further comprises a screen body. The cover plate is positioned on one side of the screen body; the shading structure is located on the side, away from the display area, of the screen body, the shading structure is located in the transition area, the side, close to the cover plate, of the shading structure extends to make contact with the side, close to the screen body, of the cover plate, and the side, away from the cover plate, of the shading structure extends in the direction away from the cover plate. According to the display panel, the shading structure at least partially surrounding the hole area is arranged on the side, away from the display area, of the screen body, the problem of light leakage of the hole area of the display panel can be solved under the condition that the narrow frame of the display panel is met, and therefore the display quality of the display panel can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and an electronic device. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display panels.

[0003] However, in the related art, there is a light leakage phenomenon in the hole area frame of the display panel, thereby affecting the display quality of the display panel. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the above technical background, an embodiment of the present application provides a display panel, the display panel comprising a hole area, a display area and a transition area between the hole area and the display area, the transition area surrounding at least a portion of the hole area; the display panel further comprises:

[0005] Screen body;

[0006] a cover plate located at one side of the screen body;

[0007] A shading structure is located on a side of the screen body away from the display area, the shading structure is located in the transition area, the side of the shading structure close to the cover plate extends to contact with the side of the cover plate close to the screen body, and the side of the shading structure away from the cover plate extends in a direction away from the cover plate.

[0008] In some possible embodiments, the light shielding structure includes a first inclined surface and / or a second inclined surface inclined toward the display area;

[0009] Preferably, the angle between the first inclined surface and the direction perpendicular to the cover plate is greater than 54°;

[0010] Preferably, the angle between the second inclined surface and the direction perpendicular to the cover plate is less than 18°;

[0011] Preferably, the first inclined surface is located on a side of the second inclined surface close to the cover plate;

[0012] Preferably, the light-shielding structure comprises a conductive material;

[0013] Preferably, the conductive material comprises at least one of silver, copper or iron;

[0014] Preferably, the light-shielding structure comprises a light-absorbing material;

[0015] Preferably, the light absorbing material comprises at least one of acrylic, silicone, polyurethane or epoxy;

[0016] Preferably, the conductive material and the light absorbing material are uniformly mixed.

[0017] In some possible embodiments, the light shielding structure includes a first portion and / or a second portion extending toward the display area;

[0018] Preferably, the first portion is located on a side of the screen body close to the cover plate;

[0019] Preferably, the display panel further comprises an adhesive layer located on a side of the cover plate close to the screen body, and the first portion extends to contact with the adhesive layer;

[0020] Preferably, the first part is arranged on the same layer as the adhesive layer;

[0021] Preferably, the light shielding structure covers the side of the adhesive layer facing the hole area;

[0022] Preferably, the distance between the orthographic projection of the edge of the adhesive layer away from the display area on the cover plate and the orthographic projection of the edge of the screen body away from the display area on the cover plate is 0.1 mm-0.3 mm;

[0023] Preferably, the second portion is located on a side of the screen body away from the cover plate;

[0024] Preferably, the display panel further comprises a foam layer located on a side of the screen body away from the cover plate, and the second portion extends to contact with the foam layer;

[0025] Preferably, the second part is arranged on the same layer as the foam layer;

[0026] Preferably, the light-shielding structure covers the side of the foam layer facing the hole area;

[0027] Preferably, the distance between the orthographic projection of the edge of the foam layer away from the display area on the cover plate and the orthographic projection of the edge of the screen body away from the display area on the cover plate is 0.1 mm-0.5 mm;

[0028] Preferably, the orthographic projection of the shading structure on the cover plate surrounds the orthographic projection of the hole area on the cover plate.

[0029] In some possible embodiments, the screen body includes a packaging layer, and the display panel further includes a first light shielding layer located on a side of the packaging layer close to the cover plate, and the first light shielding layer is located in the transition area;

[0030] Preferably, the first light-shielding layer extends to contact with the light-shielding structure;

[0031] Preferably, the color difference between the first light-shielding layer and the light-shielding structure is less than or equal to 1;

[0032] Preferably, the absorbance of the material of the first light-shielding layer is greater than or equal to 5;

[0033] Preferably, the material of the first light shielding layer includes at least one of acrylic acid, carbon powder, manganese dioxide or ferrosoferric oxide;

[0034] Preferably, the screen body further comprises an array substrate and light-emitting pixels located on one side of the array substrate, and the encapsulation layer is located on a side of the light-emitting pixels away from the array substrate;

[0035] Preferably, the display panel further comprises a polarizer, and a side of the first light shielding layer away from the encapsulation layer is in contact with a side of the polarizer close to the encapsulation layer;

[0036] Preferably, the light-shielding structure covers the side of the first light-shielding layer facing the hole area;

[0037] Preferably, the light-shielding structure covers the side surface of the encapsulation layer facing the hole region.

[0038] In some possible embodiments, a distance between an orthographic projection of a side of the first light shielding layer close to the hole area on the cover plate and an orthographic projection of a side of the screen close to the hole area on the cover plate is 0;

[0039] Preferably, the orthographic projection of the first light shielding layer on the cover plate surrounds the orthographic projection of the hole area on the cover plate;

[0040] Preferably, along a direction perpendicular to the cover plate, the thickness of the first light shielding layer is in a range of 1.5 μm to 5 μm.

[0041] In some possible embodiments, the display panel further includes a polarizer and a second light shielding layer located between the polarizer and the cover plate, and the second light shielding layer is located in the transition area;

[0042] Preferably, the color difference between the second light-shielding layer and the light-shielding structure is less than or equal to 1;

[0043] Preferably, the transmittance of the material of the second light-shielding layer is less than or equal to 0.0001;

[0044] Preferably, the material of the second light-shielding layer includes black optical glue;

[0045] Preferably, the second light-shielding layer extends to contact with the light-shielding structure;

[0046] Preferably, the orthographic projection of the second light-shielding layer on the cover plate surrounds the orthographic projection of the hole area on the cover plate;

[0047] Preferably, the distance between the orthographic projection of a side of the second light-shielding layer close to the hole area on the cover plate and the orthographic projection of a side of the screen body close to the hole area on the cover plate is 0;

[0048] Preferably, the shading structure covers the side of the polarizer facing the hole area;

[0049] Preferably, the light-shielding structure covers a side surface of the second light-shielding layer facing the hole area.

[0050] In some possible embodiments, the display panel further includes a light-transmitting layer, and the light-transmitting layer is located in the display area;

[0051] Preferably, the material of the light-transmitting layer includes a light-transmitting material;

[0052] Preferably, the material of the light-transmitting layer includes transparent optical glue.

[0053] In some possible embodiments, along a direction perpendicular to the cover plate, the thickness of the second light shielding layer is equal to the thickness of the light transmitting layer;

[0054] Preferably, along a direction perpendicular to the cover plate, the thickness range of the second light shielding layer and the thickness range of the light-transmitting layer are both 1.5 μm-10 μm;

[0055] Preferably, the light-transmitting layer and the second light-shielding layer are provided in the same layer;

[0056] Preferably, a side of the light-transmitting layer close to the second light-shielding layer contacts a side of the second light-shielding layer close to the light-transmitting layer.

[0057] In some possible embodiments, the display panel further includes an isolation column, the isolation column is located in the transition area, and at least a portion of the isolation column surrounds the hole area;

[0058] Preferably, the number of the isolation columns is multiple circles, and the multiple circles of isolation columns are arranged along the direction from the hole area to the display area;

[0059] Preferably, the screen body comprises a substrate, and the orthographic projection of the isolation column on the substrate is in a circular shape.

[0060] In some possible embodiments, the present application also provides an electronic device, which includes the display panel described in the present application.

[0061] Compared with the prior art, this application has the following beneficial effects:

[0062] A display panel and an electronic device provided in the present application can improve the light leakage problem in the hole area of ​​the display panel while meeting the narrow frame of the display panel by disposing a shading structure that at least partially surrounds the hole area on the side of the screen body away from the display area, thereby improving the display quality of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0064] Figure 1 A schematic cross-sectional view of a display panel in the related art provided by an embodiment of the present application;

[0065] Figure 2 A schematic diagram of simulation of light leakage from the hole area frame after the hole area frame is compressed in the related technology provided in the embodiment of the present application;

[0066] Figure 3 A schematic cross-sectional view of a display panel provided in an embodiment of the present application;

[0067] Figure 4 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application including a first light shielding layer;

[0068] Figure 5 The display panel provided in the embodiment of the present application includes a top view schematic diagram of a first light shielding layer and a light shielding structure;

[0069] Figure 6 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present application including a second light shielding layer;

[0070] Figure 7 The light shielding structure provided in the embodiment of the present application includes a cross-sectional schematic diagram of a first portion;

[0071] Figure 8 The light shielding structure provided in the embodiment of the present application includes a cross-sectional schematic diagram of the second part;

[0072] Fig. 9 The light shielding structure provided in the embodiment of the present application includes a cross-sectional schematic diagram of a first part and a second part;

[0073] Fig.10 A schematic diagram of a simulation of light leakage from the frame of the hole area when the light shielding structure provided in the embodiment of the present application includes a first part and a second part;

[0074] Fig.11 The display panel provided in the embodiment of the present application includes a top view schematic diagram of a second light shielding layer and a light shielding structure;

[0075] Fig.12 The light shielding structure provided in the embodiment of the present application includes a cross-sectional schematic diagram of a first inclined surface;

[0076] Fig.13 A schematic diagram of simulation of light leakage in the frame of the hole area when the angle β1 between the first inclined surface and the direction perpendicular to the cover plate provided in the embodiment of the present application is 54°;

[0077] Fig.14 A schematic diagram of simulation of light leakage in the frame of the hole area when the angle β1 between the first inclined surface and the direction perpendicular to the cover plate provided in the embodiment of the present application is 52°;

[0078] Fig.15 The light shielding structure provided in the embodiment of the present application includes a cross-sectional schematic diagram of a second inclined surface;

[0079] Fig.16 A schematic diagram of simulation of light leakage in the frame of the hole area when the angle β2 between the second inclined surface provided in the embodiment of the present application and the direction perpendicular to the cover plate is 18°;

[0080] Fig.17 A schematic diagram of simulation of light leakage in the frame of the hole area when the angle β2 between the second inclined surface provided in the embodiment of the present application and the direction perpendicular to the cover plate is 20°;

[0081] Fig.18 The light shielding structure provided in the embodiment of the present application includes a cross-sectional schematic diagram of a first inclined surface and a second inclined surface;

[0082] Fig.19 A schematic diagram of simulation of light leakage from the frame of the hole area when the angle β1 between the first inclined surface and the direction perpendicular to the cover plate is 54° and the angle β2 between the second inclined surface and the direction perpendicular to the cover plate is 18° provided in the embodiment of the present application;

[0083] Fig. 20 A schematic diagram of simulation of light leakage from the frame of the hole area when the angle β1 between the first inclined surface and the direction perpendicular to the cover plate is 52° and the angle β2 between the second inclined surface and the direction perpendicular to the cover plate is 22° provided in the embodiment of the present application;

[0084] Fig.21The transition region of the display panel provided in the embodiment of the present application also includes a cross-sectional schematic diagram of an isolation column;

[0085] Fig. 22 A schematic top view of an isolation column surrounding a hole area provided in an embodiment of the present application.

[0086] Figure numerals: 1. screen body; 2. optical adhesive layer; 3. cover plate; 4. ink layer; 5. shading structure; 51. first part; 52. second part; 6. array substrate; 7. packaging layer; 8. first shading layer; 9. luminous pixel; 10. polarizer; 11. second shading layer; 12. light-transmitting layer; 13. adhesive layer; 14. foam layer; 15. first inclined surface; 16. second inclined surface; 17. substrate; 18. isolation column. DETAILED DESCRIPTION

[0087] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0088] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0089] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0090] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0091] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0092] See also Figure 1 The display panel in the related art includes a display area AA and a hole area AC, and a transition area AB located between the display area AA and the hole area AC. The display panel includes a screen body 1 and a cover plate 3 located on one side of the screen body 1. An optical adhesive layer 2 is passed between the screen body 1 and the cover plate 3. There are metal traces in the transition area AB. The greater the density of the light-emitting pixels 9 in the display area AA, the greater the number of metal traces in the transition area AB. In the transition area AB, an ink layer 4 is also provided between the screen body 1 and the cover plate 3. The ink layer 4 can block the light emitted by the light-emitting pixels 9 in the display area AA, and can also absorb the light reflected by the metal traces in the transition area AB.

[0093] However, since the ink layer 4 is first set on the cover plate 3 and then the cover plate 3 and the ink layer 4 are bonded together on the screen body 1 through equipment, setting the ink layer 4 on the cover plate 3 will form a corresponding tolerance, and bonding the cover plate 3 and the ink layer 4 together on the screen body 1 through equipment will also form a corresponding equipment bonding tolerance. Therefore, the edge of the ink layer 4 will be larger than the display edge, ultimately making the hole area AC frame of the display panel wider.

[0094] In order to increase the screen-to-body ratio of the display panel, the border of the hole area AC needs to be compressed. Figure 2 , Figure 2 The black lines in the figure represent light rays. Figure 2 It can be seen from the simulation that when the frame of the hole area AC of the display panel is compressed, due to the above-mentioned tolerance, the ink layer 4 will not be able to block the light emitted by the light-emitting pixel 9 well enough and will not be able to absorb the light reflected by the metal wiring well enough, which will cause serious light leakage in the frame of the hole area AC of the display panel, thereby affecting the display quality of the display panel.

[0095] In view of this, the present embodiment provides a solution for improving the light leakage phenomenon of the frame of the hole area AC while compressing the frame of the hole area AC of the display panel. The solution provided by the present embodiment is described in detail below.

[0096] See also Figure 3 This embodiment provides a display panel, which includes a hole area AC, a display area AA and a transition area AB located between the hole area AC and the display area AA, and the transition area AB surrounds at least part of the hole area AC; the display panel also includes a screen body 1, a cover plate 3 and a shading structure 5.

[0097] Functional components such as a camera and a sensor may be disposed in the hole area AC to realize the photo taking or other sensing functions of the display panel.

[0098] The cover plate 3 is located on one side of the screen body 1; the shading structure 5 is located on the side of the screen body 1 away from the display area AA, the shading structure 5 is located in the transition area AB, the side of the shading structure 5 close to the cover plate 3 extends to contact with the side of the cover plate 3 close to the screen body 1, and the side of the shading structure 5 away from the cover plate 3 extends in a direction away from the cover plate 3.

[0099] The viscosity, pressure and speed of the glue material can be adjusted through the glue dispensing process to adjust the setting of the shading structure 5. The shading structure 5 extends toward the side of the cover plate 3 until it contacts the cover plate 3, and the side of the shading structure 5 away from the cover plate 3 extends in the direction away from the cover plate 3, so that the shading structure 5 fills the gap in the transition area AB on the side of the cover plate 3 facing the screen body 1, so that the shading structure 5 can better block the frame of the hole area AC, and further make the frame of the hole area AC of the display panel less likely to leak light.

[0100] In the present embodiment, the ink layer 4 at the cover plate 3 is eliminated, thereby reducing the tolerance of setting the ink layer 4 at the cover plate 3 and reducing the tolerance of bonding the cover plate 3 and the ink layer 4 together on the screen body 1. Therefore, the border of the hole area AC of the display panel can be compressed, thereby satisfying the requirement of a narrower border of the hole area AC of the display panel and improving the light leakage phenomenon of the border of the hole area AC of the display panel.

[0101] Based on the above design, this embodiment sets a shading structure 5 that at least partially surrounds the hole area AC on the side of the screen body 1 away from the display area AA. While meeting the narrow frame of the display panel, the problem of light leakage in the hole area AC of the display panel can be improved, thereby improving the display quality of the display panel.

[0102] For some possible embodiments, see Figure 4 The screen body 1 also includes an array substrate 6 and a light-emitting pixel 9 located on one side of the array substrate 6. The encapsulation layer 7 is located on the side of the light-emitting pixel 9 away from the array substrate 6. The encapsulation layer 7 extends from the display area AA to the transition area AB. The light-emitting pixel 9 is located in the display area AA.

[0103] The screen body 1 includes a packaging layer 7 , and the display panel further includes a first light shielding layer 8 located on a side of the packaging layer 7 close to the cover plate 3 , and the first light shielding layer 8 is located in the transition area AB.

[0104] The array substrate 6 may include a substrate 17 and a plurality of driving units located on one side of the substrate 17, and each driving unit may include one or more semiconductor switching devices. The semiconductor switching device may be formed by the cooperation of a plurality of film layers in the array substrate 6, for example, the semiconductor switching device may be a thin film transistor formed by the cooperation of a plurality of film layers.

[0105] The first light shielding layer 8 can be coated on the side of the encapsulation layer 7 away from the array substrate 6 by an exposure and development process or an evaporation process or an inkjet printing process. Compared with the related art, the ink layer 4 can be eliminated in this embodiment, and the first light shielding layer 8 can be formed on the side of the encapsulation layer 7 away from the array substrate 6 first, and then the cover plate 3 is arranged on the side of the first light shielding layer 8 away from the array substrate 6. Therefore, the arrangement of the first light shielding layer 8 is not easily affected by the relevant tolerance, so that the width of the frame of the hole area AC of the display panel in this embodiment can be more easily reduced.

[0106] Preferably, see again Figure 4 , the first light shielding layer 8 extends to contact the light shielding structure 5. In this way, the first light shielding layer 8 and the light shielding structure 5 can be seamlessly connected, so that light is not easy to pass through the gap between the first light shielding layer 8 and the light shielding structure 5, thereby further improving the light leakage phenomenon of the display panel.

[0107] Preferably, the light shielding structure 5 covers the side of the first light shielding layer 8 facing the hole area AC, so as to further improve the light leakage phenomenon of the display panel.

[0108] Preferably, the light shielding structure 5 covers the side of the encapsulation layer 7 facing the hole area AC. In this way, the light leakage phenomenon of the display panel can be further improved.

[0109] Preferably, the color difference between the first light shielding layer 8 and the light shielding structure 5 is less than or equal to 1. The blackness of the first light shielding layer 8 can be greater than or less than the blackness of the light shielding structure 5, and the color difference between the first light shielding layer 8 and the light shielding structure 5 only needs to be less than or equal to 1. In this way, the hole area AC frame area of ​​the display panel can be more black, thereby further improving the display quality of the display panel.

[0110] Preferably, the absorbance of the material of the first light-shielding layer 8 is greater than or equal to 5; in this way, the light-absorbing effect of the first light-shielding layer 8 can be ensured, thereby making it more difficult for the hole area AC frame of the display panel to leak light.

[0111] Preferably, the material of the first light shielding layer 8 may be a mixture of an organic material and melanin, or may be an inorganic material. Specifically, the material of the first light shielding layer 8 includes at least one of acrylic acid, carbon powder, manganese dioxide or ferrosoferric oxide.

[0112] In some possible embodiments, please refer again to Figure 4 , the distance between the orthographic projection of the side of the first shading layer 8 close to the hole area AC on the cover plate 3 and the orthographic projection of the side of the screen body 1 close to the hole area AC on the cover plate 3 is 0.

[0113] Please see again Figure 1In the related art, due to the influence of the tolerances introduced above, the distance D between the side of the ink layer 4 close to the hole area AC and the side of the ink layer 4 away from the hole area AC is greater than or equal to 0.5 μm. For example, the distance D may be 0.5 μm, 0.55 μm, 0.6 μm or 0.7 μm, etc. In this embodiment, since the first light shielding layer 8 is formed by an exposure and development process or an evaporation process or an inkjet printing process, it is not affected by the corresponding tolerances. Therefore, the distance between the orthographic projection of the side of the first light shielding layer 8 close to the hole area AC on the cover plate 3 and the orthographic projection of the side of the transition area AB close to the hole area AC on the cover plate 3 may be 0. In this way, the width of the hole area AC frame of the display panel can be reduced by at least 0.1 μm, so that the display panel can better meet the requirements of a narrow frame in the hole area AC.

[0114] Preferably, see again Figure 4 , along the direction Z perpendicular to the cover plate 3, the thickness of the first light shielding layer 8 ranges from 1.5 μm to 5 μm, for example, the thickness L1 can be 1.5 μm, 2 μm, 3 μm, 4 μm, 4.5 μm or 5 μm, etc. If the thickness L1 is set too large, the thickness of the display panel will increase, and if the thickness L1 is set too small, the light shielding effect of the first light shielding layer 8 will be reduced. Therefore, the thickness L1 is reasonably set, and the thickness of the display panel will not be increased too much while ensuring the light shielding effect of the first light shielding layer 8.

[0115] Preferably, see Figure 5 The orthographic projection of the first shading layer 8 on the cover plate 3 surrounds the orthographic projection of the hole area AC on the cover plate 3; the first shading layer 8 covers the entire transition area AB, so that the first shading layer 8 can play a shading effect from different directions, thereby further improving the light leakage phenomenon of the frame of the hole area AC of the display panel.

[0116] For some possible embodiments, see Figure 6 The display panel further includes a polarizer 10 and a second light shielding layer 11 located between the polarizer 10 and the cover plate 3 , and the second light shielding layer 11 is located in the transition area AB.

[0117] The polarizer 10 is located on the side of the encapsulation layer 7 away from the array substrate 6, and a second light shielding layer 11 can be set between the cover plate 3 and the polarizer 10. Compared with the related art, the ink layer 4 can be eliminated in this embodiment, and the second light shielding layer 11 can be formed on the side of the polarizer 10 away from the array substrate 6, and then the cover plate 3 is set on the side of the second light shielding layer 11 away from the array substrate 6. Therefore, the setting of the second light shielding layer 11 is not easily affected by the relevant tolerance, so that the width of the AC frame of the hole area of ​​the display panel in this embodiment can be more easily reduced. At the same time, the second light shielding layer 11 can block the light reflected by the surrounding metal wiring, and can further improve the light leakage and edge leakage caused by the light passing through the back.

[0118] Preferably, the color difference between the second light shielding layer 11 and the light shielding structure 5 is less than or equal to 1. The blackness of the second light shielding layer 11 can be greater than or less than the blackness of the light shielding structure 5, and the color difference between the second light shielding layer 11 and the light shielding structure 5 only needs to be less than or equal to 1. In this way, the integral black effect of the hole area AC frame of the display panel can be better satisfied, thereby further improving the display quality of the display panel.

[0119] Preferably, the transmittance of the material of the second light shielding layer 11 is less than or equal to 0.0001. In this way, the light absorption effect of the second light shielding layer 11 can be ensured, so that the aperture area AC frame of the display panel is less likely to leak light.

[0120] Preferably, the material of the second light shielding layer 11 includes black optical glue, and the cover plate 3 can be attached to the side of the polarizer 10 away from the array substrate 6 through the black optical glue. In this way, the second light shielding layer 11 has the functions of light shielding and bonding, and there is no need to use special optical glue to attach the cover plate 3, thereby reducing the thickness and cost of the display panel.

[0121] Preferably, see again Figure 6 , the second shading layer 11 extends to contact the shading structure 5; in this way, the second shading layer 11 and the shading structure 5 can be seamlessly connected, so that light is not easy to pass through the gap between the second shading layer 11 and the shading structure 5, which can further improve the light leakage phenomenon in the hole area AC of the display panel.

[0122] Preferably, the light shielding structure 5 covers the side of the polarizer 10 facing the aperture area AC, so as to further improve the light leakage phenomenon in the aperture area AC of the display panel.

[0123] Preferably, the light shielding structure 5 covers the side of the second light shielding layer 11 facing the hole area AC. In this way, the light leakage phenomenon in the hole area AC of the display panel can be further improved.

[0124] Preferably, the distance between the orthographic projection of the second light shielding layer 11 on the cover plate 3 near the hole area AC and the orthographic projection of the screen body 1 on the cover plate 3 near the hole area AC is 0. In this way, the width of the frame of the hole area AC can be further reduced.

[0125] In some possible embodiments, please refer again to Figure 6 The display panel further includes a light-transmitting layer 12 , and the light-transmitting layer 12 is located in the display area AA.

[0126] Preferably, the material of the light-transmitting layer 12 includes a light-transmitting material, specifically, the material of the light-transmitting layer 12 includes a transparent optical glue. The light emitted by the light-emitting pixels 9 of the display area AA can be irradiated out through the light-transmitting layer 12, so that the normal display of the display panel is not affected.

[0127] In some possible embodiments, please refer again to Figure 6 Along the direction Z perpendicular to the cover plate 3 , the thickness L2 of the second light-shielding layer 11 is equal to the thickness L3 of the light-transmitting layer 12 , and the light-transmitting layer 12 and the second light-shielding layer 11 are arranged on the same layer.

[0128] The display area AA can form a light-transmitting layer 12 through an inkjet printing process, and the side of the light-transmitting layer 12 away from the array substrate 6 and the side of the second light-shielding layer 11 away from the array substrate 6 are located in the same plane. In this way, the second light-shielding layer 11 and the light-transmitting layer 12 arranged on the same layer can make the film layer of the display panel smoother.

[0129] Preferably, see again Figure 6 , along the direction Z perpendicular to the cover plate 3, the thickness L2 of the second light shielding layer 11 and the thickness L3 of the light-transmitting layer 12 are both in the range of 1.5 μm-10 μm, for example, the thickness L2 and the thickness L3 can be 1.5 μm, 2 μm, 5 μm, 7 μm, 9 μm, 9.5 μm or 10 μm, etc. If the thickness L2 and the thickness L3 are set too large, the thickness of the display panel will increase, and if the thickness L2 and the thickness L3 are set too small, the light shielding effect of the second light shielding layer 11 will be reduced. Therefore, the thickness L2 and the thickness L3 are reasonably set, and the thickness of the display panel will not be increased too much while ensuring the light shielding effect of the second light shielding layer 11.

[0130] Preferably, the side of the light-transmitting layer 12 close to the second light-shielding layer 11 contacts the side of the second light-shielding layer 11 close to the light-transmitting layer 12. In this way, it is not easy to form a concave structure at the edge of the light-transmitting layer 12 and the edge of the second light-shielding layer 11, so that the flatness of the film layer where the light-transmitting layer 12 and the second light-shielding layer 11 are located can be improved.

[0131] In some possible embodiments, the light shielding structure 5 includes a first portion 51 and / or a second portion 52 extending toward the display area AA.

[0132] In some embodiments, see Figure 7 The light shielding structure 5 includes a first portion 51 extending toward the display area AA, and the first portion 51 is located on the side of the screen body 1 close to the cover plate 3. In this way, the first portion 51 of the light shielding structure 5 extends toward the display area AA, so that the light shielding structure 5 can be inserted into the film layer of the display panel toward the display area AA, thereby increasing the reliability of the light shielding structure 5 being arranged in the transition area AB of the display panel, and also improving the light shielding effect of the light shielding structure 5 on the frame.

[0133] Preferably, a side of the first light-shielding layer 8 away from the encapsulation layer 7 contacts a side of the polarizer 10 close to the encapsulation layer 7 .

[0134] In other embodiments, see Figure 8 The light shielding structure 5 includes a second portion 52 extending toward the display area AA, and the second portion 52 is located on the side of the screen body 1 away from the cover plate 3. In this way, the second portion 52 of the light shielding structure 5 extends toward the display area AA, so that the light shielding structure 5 can be inserted into the film layer of the display panel toward the display area AA, thereby increasing the reliability of the light shielding structure 5 being arranged in the transition area AB of the display panel, and also improving the light shielding effect of the light shielding structure 5 on the frame.

[0135] In some other embodiments, see Fig. 9 The light shielding structure 5 includes a first portion 51 and a second portion 52 extending toward the display area AA, wherein the first portion 51 is located on the side of the screen body 1 close to the cover plate 3, and the second portion 52 is located on the side of the screen body 1 away from the cover plate 3. In this way, the first portion 51 and the second portion 52 of the light shielding structure 5 can both extend toward the display area AA, so that the light shielding structure 5 can be inserted into the film layer of the display panel toward the display area AA, thereby further increasing the reliability of the light shielding structure 5 being arranged in the transition area AB of the display panel, and further improving the light shielding effect of the light shielding structure 5 on the frame.

[0136] Preferably, see again Fig. 9 The display panel further includes an adhesive layer 13 located on a side of the cover plate 3 close to the screen body 1 , and the first portion 51 is disposed on the same layer as the adhesive layer 13 and in contact with the adhesive layer 13 .

[0137] The adhesive layer 13 can adhere and fix the cover plate 3 to the screen body 1, and the side of the adhesive layer 13 away from the display area AA is retracted relative to the side of the screen body 1 away from the display area AA, so the first portion 51 extends in the direction of the adhesive layer 13 until it contacts the adhesive layer 13. In this way, the reliability of the light shielding structure 5 disposed in the transition area AB of the display panel can be further increased, and the light shielding effect of the light shielding structure 5 on the frame can be further improved.

[0138] Preferably, the shading structure 5 covers the side of the adhesive layer 13 facing the hole area AC. In this way, the shading effect of the shading structure 5 on the frame can be further improved.

[0139] Preferably, see again Fig. 9 , the distance D1 between the orthographic projection of the edge of the adhesive layer 13 away from the display area AA on the cover plate 3 and the orthographic projection of the edge of the screen body 1 away from the display area AA on the cover plate 3 is 0.1mm-0.3mm, for example, the distance D1 can be 0.1mm, 0.15mm, 0.2mm, 0.25mm or 0.3mm, etc. Reasonable setting of the distance D1 can further increase the reliability of the shading structure 5 set in the transition area AB of the display panel.

[0140] Preferably, see again Fig. 9The display panel further includes a foam layer 14 located on a side of the screen body 1 away from the cover plate 3 , and the second portion 52 is disposed on the same layer as the foam layer 14 and in contact with the foam layer 14 .

[0141] The side of the foam layer 14 away from the display area AA is retracted relative to the side of the screen body 1 away from the display area AA, so the first portion 51 extends toward the adhesive layer 13 until it contacts the foam layer 14. In this way, the reliability of the light shielding structure 5 disposed in the transition area AB of the display panel can be further increased, and the light shielding effect of the light shielding structure 5 on the frame can be further improved.

[0142] Preferably, the shading structure 5 covers the side of the foam layer 14 facing the hole area AC, so as to further improve the shading effect of the shading structure 5 on the frame.

[0143] Preferably, see again Fig. 9 , the distance D2 between the orthographic projection of the edge of the foam layer 14 away from the display area AA on the cover plate 3 and the orthographic projection of the edge of the screen body 1 away from the display area AA on the cover plate 3 is 0.1mm-0.5mm, for example, the distance D2 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm, etc. Reasonable setting of the distance D2 can further increase the reliability of the shading structure 5 set in the transition area AB of the display panel.

[0144] See also Fig.10 , Fig.10 The black lines in the figure represent light. When the shading structure 5 includes the first part 51 and the second part 52, according to the simulation, almost no light leaks out from the frame of the display panel. Therefore, setting the shading structure 5 to include the first part 51 and the second part 52 can greatly improve the shading effect of the shading structure 5 on the frame.

[0145] In one possible implementation, see Fig.11 , the orthographic projection of the second light shielding layer 11 on the cover plate 3 surrounds the orthographic projection of the display area AA on the cover plate 3. The second light shielding layer 11 covers the entire frame of the hole area AC, so that the second light shielding layer 11 can play a light shielding effect from different directions, thereby further improving the light leakage phenomenon of the frame of the hole area AC of the display panel.

[0146] Preferably, see again Fig.11 The orthographic projection of the shading structure 5 on the cover plate 3 surrounds the orthographic projection of the display area AA on the cover plate 3; the shading structure 5 covers the entire frame, so that the shading structure 5 can play a shading effect from different directions, thereby further improving the light leakage phenomenon of the hole area AC frame of the display panel.

[0147] Preferably, the shading structure 5 includes a conductive material, so that the shading structure 5 can play a role in conducting static electricity.

[0148] Preferably, the conductive material includes at least one of silver, copper or iron. Since silver, copper or iron have good conductivity, the static electricity conductive effect of the shading structure 5 can be further improved, thereby further improving the display quality of the display panel.

[0149] Preferably, the light-shielding structure 5 includes a light-absorbing material; the light-absorbing material includes at least one of acrylic acid, silicone, polyurethane or epoxy adhesive. Acrylic acid, silicone, polyurethane or epoxy adhesive has a better light-absorbing effect. Therefore, the light-shielding structure 5 is prepared by at least one of acrylic acid, silicone, polyurethane or epoxy adhesive, which can improve the display panel to achieve an extremely narrow display frame in the hole area AC without light leakage.

[0150] Preferably, the conductive material and the light absorbing material are uniformly mixed. In this way, the light shielding structure 5 has a frame that shields the hole area AC, making it difficult for the hole area AC frame to leak light, and can also make the light shielding structure 5 have a good static electricity conduction effect.

[0151] In some possible embodiments, the shading structure 5 includes a first inclined surface 15 and / or a second inclined surface 16 inclined toward the display area AA, and the first inclined surface 15 is located on a side of the second inclined surface close to the cover plate 3 .

[0152] When the angles between the first inclined surface 15 and / or the second inclined surface 16 and the direction perpendicular to the cover plate 3 are different, the light leakage of the frame of the display panel is simulated respectively. Before the simulation, the display area AA needs to be blocked to prevent the light emitted by the luminous pixel 9 from radiating out of the display area AA and affecting the simulation result, thereby improving the accuracy of the light leakage simulation of the frame of the display panel.

[0153] In some embodiments, see Fig.12 The light shielding structure 5 includes a first inclined surface 15 inclined toward the display area AA.

[0154] See also Fig.13 , Fig.13 The black lines in the figure represent light. When the angle β1 between the first inclined surface 15 and the direction perpendicular to the cover plate 3 is 54°, it can be seen from the simulation that a small amount of light leaks out from the frame of the display panel.

[0155] See also Fig.14 , Fig.14 The black lines in the figure represent light. When the angle β1 between the first inclined surface 15 and the direction perpendicular to the cover plate 3 is 52°, according to the simulation, some light leaks out from the frame of the display panel, and when the angle β1 is 52°, the light leaked from the frame of the display panel exceeds the light leaked when the angle β1 is 54°.

[0156] In other embodiments, see Fig.15 The light shielding structure 5 includes a second inclined surface 16 inclined toward the display area AA.

[0157] See also Fig.16 , Fig.16 The black lines in the figure represent light. When the angle β2 between the second inclined surface 16 and the direction perpendicular to the cover plate 3 is 18°, it can be seen from the simulation that a small amount of light leaks out from the frame of the display panel.

[0158] See also Fig.17 , Fig.17 The black lines in the figure represent light. When the angle β2 between the second inclined surface 16 and the direction perpendicular to the cover plate 3 is 20°, according to the simulation, some light leaks out from the frame of the display panel, and when the angle β2 is 20°, the light leaked from the frame of the display panel exceeds the light leaked when the angle β2 is 18°.

[0159] In some other embodiments, see Fig.18 The light shielding structure 5 includes a first inclined surface 15 and a second inclined surface 16 inclined toward the display area AA.

[0160] See also Fig.19 , Fig.19 The black lines in the figure represent light. When the angle β1 between the first inclined surface 15 and the direction perpendicular to the cover plate 3 is 54°, and the angle β2 between the second inclined surface 16 and the direction perpendicular to the cover plate 3 is 18°, it can be seen from the simulation that a small amount of light leaks from the frame of the display panel.

[0161] See also Fig. 20 , Fig. 20 The black lines in the figure represent light. When the angle β1 between the first inclined surface 15 and the direction perpendicular to the cover plate 3 is 52°, and the angle β2 between the second inclined surface 16 and the direction perpendicular to the cover plate 3 is 22°, it can be seen from the simulation that part of the light leaks out from the frame of the display panel, and when the angle β1 is 52° and the angle β2 is 22°, the light leaked from the frame of the display panel exceeds the light leaked when β1 is 54° and the angle β2 is 18°.

[0162] According to the above simulation, the angle β1 between the first inclined surface 15 and the direction perpendicular to the cover plate 3 is greater than 54°; the angle β2 between the second inclined surface 16 and the direction perpendicular to the cover plate 3 is less than 18°, which can further reduce the light leaking from the frame of the display panel. Therefore, the angle β1 between the first inclined surface 15 and the direction perpendicular to the cover plate 3 is set to be greater than 54°; the angle β2 between the second inclined surface 16 and the direction perpendicular to the cover plate 3 is set to be less than 18°, which can greatly improve the frame light leakage and edge leakage problems of the display panel while meeting the narrow frame of the display panel hole area AC.

[0163] For some possible embodiments, see Fig.21 The display panel further includes an isolation column 18 , which is located in the transition area AB, and at least a portion of the isolation column 18 surrounds the hole area AC.

[0164] The array substrate 6 of the display panel includes a substrate 17. In the transition area AB, an isolation column 18 is arranged on the substrate 17. The encapsulation layer 7 is arranged on the side of the isolation column 18 away from the substrate 17. The isolation column 18 can block the water and oxygen entering from the hole area AC, thereby reducing the water and oxygen entering from the hole area AC and entering the display area AA, thereby improving the display quality of the display panel.

[0165] Preferably, see Fig. 22 The orthographic projection of the isolation column 18 on the substrate 17 is in the shape of a circular ring. The isolation column 18 surrounds the hole area AC and the orthographic projection of the isolation column 18 on the substrate 17 is in the shape of a circular ring. In this way, the isolation column 18 can be set up in a smaller space without affecting the barrier effect of the isolation column 18 on water and oxygen.

[0166] Preferably, see again Fig. 22 , the number of the isolation columns 18 is multiple circles, and the multiple circles of isolation columns 18 are arranged along the direction from the hole area AC to the display area AA; that is, a single isolation column 18 can be a ring structure, and the multiple circles of isolation columns 18 are arranged in sequence along the direction from the hole area AC to the display area AA. In other implementations, the isolation columns 18 can also be single-layer or multi-layer strips. In this way, the effect of the isolation structure in blocking water oxygen in the hole area AC from entering the display area AA can be improved.

[0167] In summary, the present application sets a shading structure 5 that at least partially surrounds the hole area AC on the side of the screen body 1 away from the display area AA. This can improve the light leakage problem in the hole area AC of the display panel while meeting the narrow frame of the display panel, thereby improving the display quality of the display panel and improving the protection performance of the hole area AC, so that the hole area AC meets various environmental testing requirements with lower cost.

[0168] In some possible embodiments, the present application further provides an electronic device, the electronic device including the display panel in the present application. The electronic device may include a device with image processing capabilities, such as a server, a personal computer, a laptop computer, etc. Since the electronic device includes the display panel in the present application, the aperture area AC frame of the electronic device is not prone to light leakage, so the display quality of the electronic device is higher.

[0169] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0170] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel comprises a hole area, a display area and a transition area between the hole area and the display area, wherein the transition area surrounds at least a portion of the hole area; the display panel further comprises: Screen body; a cover plate located at one side of the screen body; A shading structure is located on a side of the screen body away from the display area, the shading structure is located in the transition area, the side of the shading structure close to the cover plate extends to contact with the side of the cover plate close to the screen body, and the side of the shading structure away from the cover plate extends in a direction away from the cover plate.

2. The display panel according to claim 1, characterized in that: The shading structure comprises a first inclined surface and / or a second inclined surface inclined toward the display area; Preferably, the angle between the first inclined surface and the direction perpendicular to the cover plate is greater than 54°; Preferably, the angle between the second inclined surface and the direction perpendicular to the cover plate is less than 18°; Preferably, the first inclined surface is located on a side of the second inclined surface close to the cover plate; Preferably, the light-shielding structure comprises a conductive material; Preferably, the conductive material comprises at least one of silver, copper or iron; Preferably, the light-shielding structure comprises a light-absorbing material; Preferably, the light absorbing material comprises at least one of acrylic, silicone, polyurethane or epoxy; Preferably, the conductive material and the light absorbing material are uniformly mixed.

3. The display panel according to claim 1, characterized in that: The light shielding structure includes a first portion and / or a second portion extending toward the display area; Preferably, the first portion is located on a side of the screen body close to the cover plate; Preferably, the display panel further comprises an adhesive layer located on a side of the cover plate close to the screen body, and the first portion extends to contact with the adhesive layer; Preferably, the first part is arranged on the same layer as the adhesive layer; Preferably, the light shielding structure covers the side of the adhesive layer facing the hole area; Preferably, the distance between the orthographic projection of the edge of the adhesive layer away from the display area on the cover plate and the orthographic projection of the edge of the screen body away from the display area on the cover plate is 0.1 mm-0.3 mm; Preferably, the second portion is located on a side of the screen body away from the cover plate; Preferably, the display panel further comprises a foam layer located on a side of the screen body away from the cover plate, and the second portion extends to contact with the foam layer; Preferably, the second part is arranged on the same layer as the foam layer; Preferably, the light-shielding structure covers the side of the foam layer facing the hole area; Preferably, the distance between the orthographic projection of the edge of the foam layer away from the display area on the cover plate and the orthographic projection of the edge of the screen body away from the display area on the cover plate is 0.1 mm-0.5 mm; Preferably, the orthographic projection of the shading structure on the cover plate surrounds the orthographic projection of the hole area on the cover plate.

4. The display panel according to claim 1, characterized in that: The screen body includes a packaging layer, and the display panel also includes a first light shielding layer located on a side of the packaging layer close to the cover plate, and the first light shielding layer is located in the transition area; Preferably, the first light-shielding layer extends to contact with the light-shielding structure; Preferably, the color difference between the first light-shielding layer and the light-shielding structure is less than or equal to 1; Preferably, the absorbance of the material of the first light-shielding layer is greater than or equal to 5; Preferably, the material of the first light shielding layer includes at least one of acrylic acid, carbon powder, manganese dioxide or ferrosoferric oxide; Preferably, the screen body further comprises an array substrate and light-emitting pixels located on one side of the array substrate, and the encapsulation layer is located on a side of the light-emitting pixels away from the array substrate; Preferably, the display panel further comprises a polarizer, and a side of the first light shielding layer away from the encapsulation layer is in contact with a side of the polarizer close to the encapsulation layer; Preferably, the light-shielding structure covers the side of the first light-shielding layer facing the hole area; Preferably, the light-shielding structure covers the side surface of the encapsulation layer facing the hole region.

5. The display panel according to claim 4, characterized in that: The distance between the orthographic projection of the side of the first light shielding layer close to the hole area on the cover plate and the orthographic projection of the side of the screen close to the hole area on the cover plate is 0; Preferably, the orthographic projection of the first light shielding layer on the cover plate surrounds the orthographic projection of the hole area on the cover plate; Preferably, along a direction perpendicular to the cover plate, the thickness of the first light shielding layer is in a range of 1.5 μm to 5 μm.

6. The display panel according to claim 1, characterized in that: The display panel further includes a polarizer and a second light shielding layer located between the polarizer and the cover plate, wherein the second light shielding layer is located in the transition area; Preferably, the color difference between the second light-shielding layer and the light-shielding structure is less than or equal to 1; Preferably, the transmittance of the material of the second light-shielding layer is less than or equal to 0.0001; Preferably, the material of the second light-shielding layer includes black optical glue; Preferably, the second light-shielding layer extends to contact with the light-shielding structure; Preferably, the orthographic projection of the second light-shielding layer on the cover plate surrounds the orthographic projection of the hole area on the cover plate; Preferably, the distance between the orthographic projection of a side of the second light-shielding layer close to the hole area on the cover plate and the orthographic projection of a side of the screen body close to the hole area on the cover plate is 0; Preferably, the shading structure covers the side of the polarizer facing the hole area; Preferably, the light-shielding structure covers a side surface of the second light-shielding layer facing the hole area.

7. The display panel according to claim 6, characterized in that: The display panel further includes a light-transmitting layer, and the light-transmitting layer is located in the display area; Preferably, the material of the light-transmitting layer includes a light-transmitting material; Preferably, the material of the light-transmitting layer includes transparent optical glue.

8. The display panel according to claim 7, characterized in that: Along a direction perpendicular to the cover plate, the thickness of the second light shielding layer is equal to the thickness of the light transmitting layer; Preferably, along a direction perpendicular to the cover plate, the thickness of the second light shielding layer is in a range of 1.5 μm to 10 μm; Preferably, along the direction perpendicular to the cover plate, the thickness of the light-transmitting layer is in the range of 1.5 μm to 10 μm; Preferably, the light-transmitting layer and the second light-shielding layer are provided in the same layer; Preferably, a side of the light-transmitting layer close to the second light-shielding layer contacts a side of the second light-shielding layer close to the light-transmitting layer.

9. The display panel according to claim 1, characterized in that: The display panel further includes an isolation column, the isolation column is located in the transition area, and at least a portion of the isolation column surrounds the hole area; Preferably, the number of the isolation columns is multiple circles, and the multiple circles of isolation columns are arranged along the direction from the hole area to the display area; Preferably, the screen body comprises a substrate, and the orthographic projection of the isolation column on the substrate is in a circular shape.

10. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 9.

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