Display Panel and Display Device

Abstract

An embodiment of the present application provides a display panel and a display device. The display panel includes a substrate, a driving circuit layer, a first anode layer, a pixel definition layer, a light-emitting layer, a second anode layer, a cathode layer, and a plurality of first reflection structures. The first reflection structures are located within the pixel definition layer and correspond to the anti-peeking sub-pixels one by one. The projection of the first reflection structure in the thickness direction of the display panel is located within the anti-peeking sub-pixel corresponding to the first reflection structure. The first reflection structure is configured to at least partially reflect the light that is not perpendicular to the thickness direction of the display panel into the anti-peeking area. The display panel and the display device provided by the present application improve the light utilization rate of the anti-peeking sub-pixels and enhance the display quality and display effect of the display panel through the innovation of the display panel architecture.

Description

Technical Field

[0001] This application belongs to the field of display technology, and particularly relates to a display panel and a display device. Background Art

[0002] In recent years, display panel technology has made remarkable progress and development, especially in improving image quality, increasing energy efficiency, reducing costs, and developing new functions. With the increasingly widespread application of display devices such as mobile phones and computers, people also attach particular importance to the privacy of using display devices. In some cases, users hope that the information displayed on the display device is not known to other surrounding users. Therefore, more and more display devices have anti-peeping functions.

[0003] For existing anti-peeping display panels, anti-peeping is achieved through an anti-peeping film. When the anti-peeping function is not required, the anti-peeping film can only be peeled off, and it is inconvenient to switch the anti-peeping function. To solve the problem of inconvenient switching of the anti-peeping function, some display panels are provided with anti-peeping units. After the anti-peeping units are turned on, when viewed directly, the display panel can be normally displayed. When viewed obliquely, the light emitted by the anti-peeping units interferes with the light of the display units, achieving anti-peeping when viewed obliquely. For OLED (Organic Light Emitting Diode) display devices, there is a reflection phenomenon, resulting in low light utilization rate of the anti-peeping units and weak interference ability of the light of the anti-peeping units on the display units, resulting in an unsatisfactory anti-peeping effect of the display panel. Summary of the Invention

[0004] In view of this, embodiments of this application provide a display panel and a display device to solve the technical problems of low light utilization rate of the anti-peeping units of the existing display panel and poor anti-peeping effect.

[0005] In a first aspect, embodiments of this application provide a display panel, including:

[0006] A substrate;

[0007] A driving circuit layer located on one side of the substrate;

[0008] A first anode layer located on the side of the driving circuit layer away from the substrate, and the first anode layer includes a plurality of anodes;

[0009] A pixel definition layer arranged in an array and spaced on the side of the first anode layer away from the substrate, and the pixel definition layer forms an anti-peeping area in the thickness direction of the display panel;

[0010] The light-emitting layer includes a plurality of sub-pixels, and the sub-pixels are connected to the anodes in a one-to-one correspondence. The plurality of sub-pixels include display sub-pixels and anti-peeking sub-pixels. The display sub-pixels are located on the side of the first anode layer away from the substrate and between two adjacent pixel definition layers. The anti-peeking sub-pixels are located on the side of the pixel definition layer away from the substrate. The display sub-pixels form a display area in the thickness direction of the display panel.

[0011] The second anode layer is located between the pixel definition layer and the anti-peeking sub-pixels. The second anode layer includes a plurality of second anodes, and the second anodes are connected to the anti-peeking sub-pixels in a one-to-one correspondence.

[0012] The cathode layer is located on the side of the light-emitting layer away from the substrate.

[0013] A plurality of light-shielding units are located on the side of the cathode layer away from the substrate. The light-shielding units correspond to the anti-peeking sub-pixels in a one-to-one correspondence. The projection of the anti-peeking sub-pixel in the thickness direction of the display panel is located within the light-shielding unit corresponding to the anti-peeking sub-pixel; and

[0014] A plurality of first reflection structures are located within the pixel definition layer. The first reflection structures correspond to the anti-peeking sub-pixels in a one-to-one correspondence. The projection of the first reflection structure in the thickness direction of the display panel is located within the anti-peeking sub-pixel corresponding to the first reflection structure. The first reflection structure is configured to at least partially reflect the light that is not perpendicular to the thickness direction of the display panel to the anti-peeking area.

[0015] In some embodiments, the first reflection structure includes:

[0016] A first reflector configured to reflect external light and / or light emitted by the sub-pixel adjacent to the reflector;

[0017] A first color-resist layer coated on the first reflector. The first color-resist layer is configured to filter the color of light; and

[0018] A first electrochromic layer coated on the first color-resist layer. The first electrochromic layer is connected to the first anode layer. The first electrochromic layer has two states. When in the first state, the first electrochromic layer is black. When in the second state, the first electrochromic layer is transparent to allow light to enter.

[0019] In some embodiments, the color of the color-resist of the first color-resist layer is the same as the color of the anti-peeking sub-pixel corresponding to the first reflection structure.

[0020] In some embodiments, a second reflection structure is further included, and the second reflection structure is located within the pixel definition layer and between two adjacent first reflection structures;

[0021] Wherein, when the display panel is in the anti-peeking mode, the second reflection structure is configured to reflect external light into the anti-peeking area, and when the display panel is in the normal display mode, the second reflection structure is configured to absorb external light.

[0022] In some embodiments, the second reflection structure includes:

[0023] A second reflector for reflecting external light;

[0024] A second color filter layer covering the second reflector; and

[0025] A second electrochromic layer covering the second color filter layer, the second electrochromic layer is connected to the first anode layer, and the second electrochromic layer has two states. When in the first state, the second electrochromic layer is black to absorb external light, and when in the second state, the second electrochromic layer is transparent to allow external light to enter.

[0026] In some embodiments, the second color filter layer includes a first color filter unit and a second color filter unit arranged oppositely, and the first color filter unit and the second color filter unit are disposed on the surface of the second reflector and cover the second reflector;

[0027] Wherein, the first color filter unit has the same color as the adjacent anti-peeking sub-pixel, and the color filter color of the second color filter unit is the same as the adjacent anti-peeking sub-pixel.

[0028] In some embodiments, the side of the second reflection structure away from the substrate is recessed toward the side where the substrate is located, forming a second curved surface.

[0029] In some embodiments, the side of at least one of the first reflection structures away from the substrate is recessed toward the side where the substrate is located, forming a first curved surface.

[0030] In some embodiments, the display panel further includes a packaging layer, the packaging layer is located on the side of the cathode layer away from the substrate, and the light-shielding unit is located on the side of the packaging layer away from the substrate.

[0031] In some embodiments, the second anode layer is transparent.

[0032] In a second aspect, an embodiment of the present application provides a display device, including:

[0033] The display panel as described in the first aspect;

[0034] The main board is connected to the display panel.

[0035] In traditional OLED displays, a light-shielding layer is designed on the anti-peeping sub-pixels, which will lose most of the light of the anti-peeping sub-pixels and reduce the light utilization rate of the anti-peeping sub-pixels. The display panel and the display device provided by the embodiments of the present application improve the light utilization rate of the anti-peeping sub-pixels through the innovation of the display panel architecture. Specifically, by adding a plurality of first reflection structures in the pixel definition layer, the first reflection structure is used to at least partially reflect the light that is not perpendicular to the thickness direction of the display panel to the anti-peeping area, thereby improving the light utilization rate of the anti-peeping sub-pixels and enhancing the anti-peeping effect.

[0036] Furthermore, when the external light is strong and the display panel is in the anti-peeping mode, the anti-peeping effect can be enhanced. If it is in the normal display mode, the reflectivity can be reduced and the display effect of the panel can be improved. This will improve the display quality and display effect of the display panel to a certain extent, and at the same time improve the competitiveness of the panel and the satisfaction of customers. Specifically, when the anti-peeping sub-pixel is turned on, the light emitted downward passes through the second anode layer and transmits the light to the first reflection structure. The first reflection mechanism will reflect the light. During this process, the non-orthogonal projection light (the light that is not perpendicular to the thickness direction of the display panel) will be reflected to the viewing angle range of the anti-peeping area for anti-peeping. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 is a schematic structural diagram of the display panel provided by the embodiments of the present application Figure 1 ;

[0039] Figure 2 is a schematic structural diagram of the display panel provided by the embodiments of the present application Figure 2 ;

[0040] Figure 3 is a schematic diagram of the first reflection structure in the display panel provided by the embodiments of the present application;

[0041] Figure 4 is a schematic diagram of the second reflection structure in the display panel provided by the embodiments of the present application;

[0042] Figure 5 is a schematic diagram of the light and structure of the display panel provided by the embodiments of the present applicationFigure 1 ;

[0043] Figure 6 is a schematic diagram of the light and structure of the display panel provided by an embodiment of the present application Figure 2 ;

[0044] Figure 7 is a schematic diagram of the light and structure of the display panel provided by an embodiment of the present application Figure 3 ;

[0045] Figure 8 is a schematic diagram of the first reflection structure in the display panel provided by another embodiment of the present application;

[0046] Figure 9 is a schematic diagram of the second reflection structure in the display panel provided by another embodiment of the present application.

[0047] Among them, the reference numerals of the drawings:

[0048] 10. Substrate;

[0049] 20. Driving circuit layer;

[0050] 30. First anode layer; 31. First anode; 32. Third anode; 33. Fourth anode;

[0051] 40. Pixel definition layer; 400. First reflection structure; 4000. First curved surface; 401. First reflector; 402. First color resist layer; 403. First electrochromic layer; 410. Second reflection structure; 4100. Second curved surface; 411. Second reflector; 412. Second color resist layer; 4121. First color resist unit; 4122. Second color resist unit; 413. Second electrochromic layer;

[0052] 50. Light-emitting layer; 51. Display sub-pixel; 52. Anti-peeping sub-pixel;

[0053] 60. Second anode layer; 61. Second anode;

[0054] 70. Cathode layer;

[0055] 80. Light-shielding unit;

[0056] 90. Encapsulation layer. Detailed implementation manners

[0057] In the following description, specific details such as specific system architectures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the embodiments of the present application.

[0058] It should also be understood that the term "and / or" used in the specification of the embodiments of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0059] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the embodiments of the present application.

[0061] In addition, in the description of the specification of the embodiments of the present application and the appended claims, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0062] The reference to "some embodiments" or "some embodiments" etc. described in the specification of the embodiments of the present application means that in one or more embodiments of the present application, specific features, structures, or characteristics described in connection with the embodiment are included. Thus, statements such as "in some embodiments", "in some embodiments", "in other some embodiments", "in still other some embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "A plurality" means two or more.

[0063] In the prior art, a light-shielding unit is designed on the anti-peeping sub-pixel of a traditional OLED display, which will lose most of the light of the anti-peeping sub-pixel, thereby reducing the light utilization rate of the anti-peeping sub-pixel and resulting in a poor anti-peeping effect. The display panel and the display device provided by the embodiments of the present application innovate the architecture of the display panel, and a plurality of first reflection structures are arranged within the pixel definition layer and under the orthographic projection of the anti-peeping sub-pixel, reflecting the light that is not perpendicular to the thickness direction of the display panel into the anti-peeping area, thereby improving the light utilization rate of the anti-peeping sub-pixel and enhancing the anti-peeping effect. This will improve the display quality and display effect of the display panel to a certain extent, and at the same time, it can also improve the competitiveness of the panel and the satisfaction of customers.

[0064] It should be noted that the thickness direction of the display panel mentioned in the embodiments of the present application is the Y direction in the figure, and the X direction is the length / width direction of the display panel. The above is only for the convenience of understanding the technical solutions of the embodiments of the present application and should not be construed as a limitation on the scope of the embodiments of the present application.

[0065] In the first aspect of the embodiments of the present application, a display panel is provided, as Figures 1 to 9 shown, the display panel includes a substrate 10, a driving circuit layer 20, a first anode layer 30, a pixel definition layer 40, a light-emitting layer 50, a second anode layer 60, a cathode layer 70, a plurality of light-shielding units 80, and a plurality of first reflection structures 400;

[0066] The driving circuit layer 20 is located on one side of the substrate 10;

[0067] The first anode layer 30 is located on the side of the driving circuit layer 20 away from the substrate 10, and the first anode layer 30 includes a plurality of anodes;

[0068] The pixel definition layer 40 is arranged in an array and spaced on the side of the first anode layer 30 away from the substrate 10, and the pixel definition layer 40 forms an anti-peeping area in the thickness direction of the display panel;

[0069] The light-emitting layer 50 includes a plurality of sub-pixels, and the plurality of sub-pixels are connected to the plurality of anodes in one-to-one correspondence. The plurality of sub-pixels include a display sub-pixel 51 and an anti-peeping sub-pixel 52. The display sub-pixel 51 is located on the side of the first anode layer 30 away from the substrate 10 and between two adjacent pixel definition layers 40, and the anti-peeping sub-pixel 52 is located on the side of the pixel definition layer 40 away from the substrate 10. The display sub-pixel 51 forms a display area in the thickness direction of the display panel;

[0070] The second anode layer 60 is located between the pixel definition layer and the anti-peeping sub-pixel, and the second anode layer 60 includes a plurality of second anodes 61, and the second anodes 61 are connected to the anti-peeping sub-pixels 52 in one-to-one correspondence;

[0071] The cathode layer 70 is located on the side of the light-emitting layer 50 away from the substrate 10;

[0072] A plurality of light-shielding units 80 are located on a side of the cathode layer 70 away from the substrate 10. The light-shielding units 80 correspond to the privacy sub-pixels 52 one by one. The projection of the privacy sub-pixel 52 in the thickness direction of the display panel is located within the light-shielding unit 80 corresponding to the privacy sub-pixel 52.

[0073] A plurality of first reflection structures 400 are located within the pixel definition layer 40. The first reflection structures 400 correspond to the privacy sub-pixels 52 one by one. The projection of the first reflection structure 400 in the thickness direction of the display panel is located within the privacy sub-pixel 52 corresponding to the first reflection structure 400. The first reflection structures 400 are configured to at least partially reflect light that is not perpendicular to the thickness direction of the display panel into the privacy area.

[0074] The display panel and the display device provided by the embodiments of the present application improve the light utilization rate of the privacy sub-pixels through architectural innovation of the display panel. Specifically, by adding a plurality of first reflection structures within the pixel definition layer, the first reflection structures are configured to at least partially reflect light that is not perpendicular to the thickness direction of the display panel into the privacy area, thereby improving the light utilization rate of the privacy sub-pixels and enhancing the privacy effect.

[0075] In applications, the material of the substrate is usually glass, plastic, flexible metal foil, or composite materials, etc. The function of the substrate is to serve as the basic support structure for the entire display panel. It usually has good flatness and smoothness to ensure the uniformity and stability of subsequent layers. The driving circuit layer is usually made of amorphous silicon or low-temperature polysilicon to form thin-film transistors; its function is to control the on / off state and brightness adjustment of each pixel point and is responsible for transmitting electrical signals to the light-emitting layer. The anode layer includes a first anode layer and a second anode layer, and its material is usually made of transparent conductive materials such as indium tin oxide or other transparent conductive oxides. The function of the anode layer is to serve as the positive electrode, and its main function is to inject holes into the light-emitting layer. In some embodiments, the anode layer needs to be transparent to allow light to pass through. The material of the pixel definition layer is usually a photosensitive polymer material fabricated through a photolithography process; its function is to define the positions of individual pixels and isolate different pixel regions to prevent material mixing between adjacent pixels. This helps to form clear pixel boundaries. The material of the light-emitting layer consists of organic light-emitting materials, which can be fluorescent materials, phosphorescent materials, or other types, depending on the technical route of the display panel; the function of the light-emitting layer is that when holes and electrons meet in the light-emitting layer, excitons are formed and light is emitted, thereby generating the colors of images or text. The material of the cathode layer is usually composed of low work function metals or alloys such as aluminum and magnesium. The cathode layer serves as the negative electrode, and its main function is to extract electrons from the light-emitting layer. The light-shielding layer (referred to as the light-shielding unit in the embodiments of the present application), its material is usually composed of black metal or highly light-absorbing organic materials; in a privacy display panel, its function is to reduce the visible range when viewed from the side and improve the contrast when viewed from the front. It can reduce unnecessary light leakage and help to form a clearer image.

[0076] In applications, light that is not perpendicular to the thickness direction of the display panel, that is, as Figure 2 shown in the schematic diagram of light rays, that is, light rays that form a certain angle with the direction perpendicular to the thickness direction of the display panel, that is, obliquely incident light rays. The first reflection structure mainly reflects the obliquely incident light rays into the privacy area, so as to achieve display and viewing from the direction perpendicular to the thickness direction of the display panel, and finally improve the privacy protection effect and enhance the privacy protection of the display panel for users.

[0077] In some embodiments, as Figures 1 to 4 shown, the first reflection structure 400 includes a first reflector 401, a first color resist layer 402, and a first electrochromic layer 403;

[0078] The first reflector 401 is used to reflect external light and / or light emitted by sub-pixels adjacent to the reflector;

[0079] The first color resist layer 402 is coated on the first reflector 401, and the first color resist layer 402 is used to filter the color of light;

[0080] The first electrochromic layer 403 is coated on the first color resist layer 402. The first electrochromic layer 403 is connected to the first anode layer 30. The first electrochromic layer 403 has two states. When in the first state, the first electrochromic layer 403 is black, thereby absorbing external light, improving the light utilization rate to enhance the display effect; when in the second state, the first electrochromic layer 403 is transparent to allow light to enter.

[0081] In application, the working principle of the first reflection structure is as follows:

[0082] When the display panel is in the normal display mode, that is, the first electrochromic layer is in the first state and is black, it can absorb external light, thereby improving the light utilization rate and also playing a role in enhancing the display effect.

[0083] When the display panel is in the anti-peeking mode, the first electrochromic layer is in the second state, that is, it is transparent. The light emitted by the anti-peeking sub-pixels will pass through the first electrochromic layer → the first color resist layer → the first reflector, and the first reflector will reflect the light and reflect the light into the anti-peeking area. During this process, the non-orthogonal projection light (that is, the light not perpendicular to the thickness direction of the display panel) will be reflected to the anti-peeking viewing angle range for anti-peeking.

[0084] In some embodiments, the color resist color of the first color resist layer is the same as the color of the anti-peeking sub-pixels corresponding to the first reflection structure. In application, the colors of the anti-peeking sub-pixels usually include three colors: red, green, and blue, that is, the color resist color of the first color resist layer is the same as the color of the anti-peeking sub-pixels corresponding to the first reflection structure, either both are red, both are blue, or both are green. In this way, light of different colors can be reflected specifically to enhance the anti-peeking effect.

[0085] In some embodiments, as Figures 2 to 9 shown, the display panel further includes a second reflection structure 410. The second reflection structure 410 is located within the pixel definition layer 40 and between two adjacent first reflection structures 400;

[0086] Among them, when the display panel is in the anti-peeking mode, the second reflection structure 410 is used to reflect external network lines into the anti-peeking area to enhance the anti-peeking effect of the display panel;

[0087] When the display panel is in the normal display mode, the second reflection structure 410 is used to absorb external light to enhance the display effect of the display panel.

[0088] In some embodiments, as Figures 2 to 4 shown, the second reflection structure 410 includes a second reflector 411, a second color resist layer 412, and a second electrochromic layer 413;

[0089] The second reflector 411 is used to reflect external light;

[0090] The second color filter layer 412 is coated on the second reflector 411, and the second color filter layer 412 is used to filter the color of light;

[0091] The second electrochromic layer 413 is coated on the second color filter layer 412. The second electrochromic layer 413 is connected to the first anode layer 30. The second electrochromic layer 413 has two states. When the second electrochromic layer 413 is in the first state, it is black, and the entire second reflection structure 410 is used to absorb external light to enhance the emission brightness of the display sub-pixel 51 and also improve the overall light utilization rate;

[0092] When the second electrochromic layer 413 is in the second state, the second electrochromic layer 413 is transparent, and external light can pass through the second electrochromic layer 413, be filtered by the second color filter layer 412, and then be reflected by the second reflector 411 into the anti-peeking area to improve the anti-peeking effect.

[0093] In an application, when the external light is strong and the display panel is in the anti-peeking mode, the external light passes through the second electrochromic layer and the second color filter layer of the second reflection structure, and finally is reflected by the second reflector into the anti-peeking viewing angle range to enhance the anti-peeking effect. If the display panel is in the normal display mode, the first anode layer controls the second electrochromic layer in the second reflection structure to be black to play the role of absorbing external light, thereby improving the display effect of the display panel.

[0094] In some embodiments, as Figure 1 and Figure 2 shown, the first anode layer 30 includes a first anode 31, a third anode 32, and a fourth anode 33. The first anode 31 is connected to the display sub-pixel 51. The third anode 32 is connected to the first electrochromic layer 403 in the first reflection structure 400 to control the state change of the first electrochromic layer 403. The fourth anode 33 is connected to the second electrochromic layer 413 in the second reflection structure 410 to control the state change of the second electrochromic layer 413.

[0095] In some embodiments, as Figures 2 to 4 shown, the second color filter layer 412 includes a first color filter unit 4121 and a second color filter unit 4122 which are oppositely arranged. The first color filter unit 4121 and the second color filter unit 4122 are disposed on the surface of the second reflector 411 and coat the second reflector 411;

[0096] Among them, the first color filter unit 4121 has the same color as the adjacent anti-peeking sub-pixel 52, and the color filter color of the second color filter unit 4122 is the same as the color of the adjacent anti-peeking sub-pixel 52.

[0097] In applications, the colors of the anti-peeping sub-pixels usually include red, green and blue, that is, the color of the first color-resistance unit is the same as the color of the closest anti-peeping sub-pixel, red, blue or green, and similarly, the color of the second color-resistance unit is the same as the color of the closest anti-peeping sub-pixel, red, blue or green. In this way, light of different colors can be reflected in a targeted manner, thereby improving the anti-peeping effect.

[0098] In application, the first reflector and the second reflector are three-dimensional structures, usually regular three-dimensional structures such as spheres, ellipsoids, and cylinders. In other embodiments, they can also be irregular three-dimensional structures. In some embodiments, the first color resist layer is a coating applied on the first reflector, and the first electrochromic layer is a coating applied on the first color resist layer. Similarly, the second reflector, the second color resist layer and the second electrochromic layer are of the same or similar design. The difference is that the second color resist layer has at least two colors, that is, the first color resist unit can be red and the second color resist unit can be green, the first color resist unit can be green and the second color resist unit can be red, etc. Moreover, the specific shapes of the first reflective structure and the second reflective structure can be the same or different.

[0099] In some embodiments, Figures 5 to 9 As shown, at least one first reflective structure 400 is recessed on one side away from the substrate 10 and is close to the substrate 10 to form a first curved surface 4000. This is set to increase the area of ​​external light entering the first reflective structure 400. By increasing the incident area by recessing the side of the first reflective structure 400 away from the substrate 10 to form the first curved surface 4000, more external light can be incident on the surface of the first reflective structure 400 at more angles, and then reflected into the anti-peeping area, thereby further enhancing the anti-peeping effect. In application, all first reflective structures 400 are recessed inward to form the first curved surface 4000. In this way, the anti-peeping effect of each part of the display panel can be uniform and the same, thereby achieving wide-angle anti-peeping.

[0100] In some embodiments, Figures 5 to 9As shown, the side of the second reflection structure 410 away from the substrate 10 is recessed toward the side where the substrate 10 is located, forming a second curved surface 4100. In other words, the side of the second reflection structure 410 away from the substrate 10 is recessed inward to form the second curved surface 4100. Similar to the function of the first curved surface 4000, it also effectively increases the incident area and incident angle of external light, enabling more external light to enter the second reflection structure 410 at more angles. According to the specific application state of the display panel, when in the anti-peeking mode, the second reflection structure 410 can reflect external light to the anti-peeking area according to the interaction of the second reflector 411, the second color resist layer 412, and the second electrochromic layer 413, improving the light utilization rate of the anti-peeking sub-pixel 52 to achieve a better anti-peeking effect of the display panel; when the display panel is in the normal display mode, the second electrochromic layer 413 of the second reflection structure 410 is black, so that the second reflection structure 410 can absorb external light to improve the emission brightness of the display sub-pixel 51, thereby enhancing the display effect.

[0101] In some embodiments, as Figures 1 to 9 shown, the display panel further includes a packaging layer 90. The packaging layer 90 is located on the side of the cathode layer 70 away from the substrate 10, and the light-shielding unit 80 is located on the side of the packaging layer 90 away from the substrate 10. In application, the packaging layer 90 is an important part of the organic light-emitting diode display panel. Its main purpose is to protect the light-emitting layer 50 from the influence of moisture and oxygen, because these factors will cause the degradation of OLED materials and shorten the life of the display panel. The packaging layer 90 is usually located on the outermost layer of the display panel, covering the cathode layer 70.

[0102] The material of the packaging layer usually uses inorganic materials such as glass or ceramics to provide a high-strength physical barrier to effectively isolate moisture and oxygen. Its main functions are to isolate moisture and oxygen: prevent moisture and oxygen from penetrating into the OLED layer, extend the service life of the display panel, and also provide physical protection for the display panel, avoid damage to the OLED layer caused by the external environment, as well as anti-scratch, improve the wear resistance and scratch resistance of the display panel; improve the display quality and enhance the reliability.

[0103] In the second aspect of the embodiments of the present application, a display device is provided. The display device includes the display panel described in the first aspect of the embodiments of the present application and a main board (not shown in the figure), and the main board is connected to the display panel.

[0104] The display device provided by the embodiments of the present application can effectively improve the anti-peeking effect and the display effect, thereby effectively improving the display quality of the display device, and ultimately enhancing the customer's preference.

[0105] In the above embodiments, the descriptions of the respective embodiments each have their own emphasis. For parts not described in detail or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0106] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and are not intended to limit them. Although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: substrate; A driving circuit layer, located on one side of the substrate; A first anode layer, located at a side of the driving circuit layer away from the substrate, the first anode layer comprising a plurality of anodes; A pixel definition layer, arranged in an array and at intervals on a side of the first anode layer away from the substrate, wherein the pixel definition layer forms an anti-peeping area in a thickness direction of the display panel; a light-emitting layer, comprising a plurality of sub-pixels, wherein the sub-pixels are connected to the anodes in a one-to-one correspondence, wherein the plurality of sub-pixels include display sub-pixels and anti-peeping sub-pixels, wherein the display sub-pixels are located on a side of the first anode layer away from the substrate and between two adjacent pixel definition layers, and the anti-peeping sub-pixels are located on a side of the pixel definition layer away from the substrate, and wherein the display sub-pixels form a display area in a thickness direction of the display panel; A second anode layer, located between the pixel definition layer and the anti-peeping sub-pixel, the second anode layer comprising a plurality of second anodes, and the second anodes are connected to the anti-peeping sub-pixels in a one-to-one correspondence; A cathode layer, located on a side of the light-emitting layer away from the substrate; A plurality of light shielding units are located on a side of the cathode layer away from the substrate, the light shielding units correspond to the anti-peeping sub-pixels one by one, and the projection of the anti-peeping sub-pixel in the thickness direction of the display panel is located within the light shielding unit corresponding to the anti-peeping sub-pixel; a plurality of first reflective structures located in the pixel definition layer, the first reflective structures corresponding to the anti-peeping sub-pixels one by one, the projection of the first reflective structure in the thickness direction of the display panel being located in the anti-peeping sub-pixel corresponding to the first reflective structure, and the first reflective structure being used to reflect at least part of the light that is not perpendicular to the thickness direction of the display panel into the anti-peeping area; as well as A second reflective structure is located in the pixel definition layer and between two adjacent first reflective structures; Wherein, when the display panel is in the anti-peeping mode, the second reflective structure is used to reflect external light into the anti-peeping area, and when the display panel is in the normal display mode, the second reflective structure is used to absorb external light.

2. The display panel according to claim 1, wherein: The first reflective structure comprises: A first reflector, used to reflect external light and / or light emitted by the sub-pixel adjacent to the reflector; A first color-resistance layer, covering the first reflector, the first color-resistance layer being used to filter the color of light; and The first electrochromic layer is coated on the first color resist layer. The first electrochromic layer is connected to the first anode layer. The first electrochromic layer has two states. When in the first state, the first electrochromic layer is black. When in the second state, the first electrochromic layer is transparent to allow light to enter.

3. The display panel according to claim 2, wherein: The color of the first color-resistance layer is the same as the color of the anti-peeping sub-pixel corresponding to the first reflective structure.

4. The display panel according to claim 1, wherein: The second reflective structure comprises: A second reflector, used for reflecting external light; A second color-resist layer, covering the second reflector; and The second electrochromic layer is coated on the second color resist layer. The second electrochromic layer is connected to the first anode layer. The second electrochromic layer has two states. When in the first state, the second electrochromic layer is black to absorb external light. When in the second state, the second electrochromic layer is transparent to allow external light to enter.

5. The display panel according to claim 4, wherein: The second color-resist layer includes a first color-resist unit and a second color-resist unit which are arranged opposite to each other, wherein the first color-resist unit and the second color-resist unit are arranged on the surface of the second reflector and cover the second reflector; The first color-resistance unit has the same color as the adjacent anti-peeping sub-pixel, and the second color-resistance unit has the same color as the adjacent anti-peeping sub-pixel.

6. The display panel according to claim 1, wherein: The side of the second reflective structure away from the substrate is concavely arranged on the side close to the substrate to form a second curved surface.

7. The display panel according to any one of claims 1 to 6, characterized in that: A side of at least one of the first reflective structures away from the substrate is concavely arranged relative to a side close to the substrate, forming a first curved surface.

8. The display panel according to any one of claims 1 to 6, characterized in that: The display panel further includes an encapsulation layer, the encapsulation layer is located on a side of the cathode layer away from the substrate, and the shading unit is located on a side of the encapsulation layer away from the substrate.

9. A display device, characterized in that: include: The display panel according to any one of claims 1 to 8; A main board is connected to the display panel.

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