Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel includes: an array substrate; the anode layer is located on the array substrate; the light-emitting layer is located on the surface of the side, away from the array substrate, of the anode layer; the cathode layer is located on the surface of the side, away from the anode layer, of the light-emitting layer; the barrier layer is located on the array substrate; the barrier layer comprises a plurality of barrier structures, each barrier structure is arranged on the side surface of a target layer, the barrier structures are used for absorbing or reflecting light emitted from the side surface of the light-emitting layer, and the target layer at least comprises the light-emitting layer and the cathode layer. Thus, the blocking structure can reflect light emitted by the light-emitting layer from the side face, so that the light emitted by the light-emitting layer from the side face cannot be transmitted to the image display side of the display panel, the lateral display visual angle of the display panel is reduced, and lateral peep prevention is achieved.

Description

Technical Field

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

[0002] With the development of display technology, display devices are widely used in all aspects of people's daily life, and people have more and more functional requirements for display devices. For example, the requirements for display viewing angles of display devices are different in different application scenarios. In situations where display information needs to be shared with others, the display device needs to have a wide display viewing angle to achieve sharing of display information. In situations where display information needs to be kept confidential, the display device needs to have a narrow display viewing angle to achieve anti-peeping of the display information.

[0003] In the related art, a privacy film is attached to the display device to achieve lateral privacy protection. The privacy film uses the optical privacy protection principle of a blind to change the angle of sight to achieve the privacy protection effect. However, the privacy film currently produced generally has an overall light transmittance that is not high enough. The use of the privacy film on the display device will reduce the display brightness, thereby affecting the display effect. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device that can improve the anti-peeping effect of the display device in order to solve the above technical problems.

[0005] In a first aspect, the present application provides a display panel, comprising:

[0006] An array substrate;

[0007] an anode layer, located on the array substrate;

[0008] A light-emitting layer, located on a surface of the anode layer away from the array substrate;

[0009] A cathode layer, located on a surface of the light-emitting layer away from the anode layer;

[0010] A blocking layer is located on the array substrate; the blocking layer includes a plurality of blocking structures, each of which is arranged on the side of the target layer, and the blocking structure is used to absorb or reflect the light emitted from the side of the light-emitting layer, wherein the target layer at least includes the light-emitting layer and the cathode layer.

[0011] In one embodiment, the side wall surface of the blocking structure close to the light-emitting layer is a flat surface;

[0012] Optionally, in the case where the blocking structure absorbs light emitted from the side of the light-emitting layer, the shape of the blocking structure includes a rectangular parallelepiped;

[0013] Optionally, when the blocking structure reflects the light emitted from the side of the light-emitting layer, the blocking structure includes a prism structure.

[0014] In one embodiment, the side wall surface of the blocking structure close to the light-emitting layer is a non-flat surface;

[0015] Optionally, the shape of the side wall surface of the blocking structure close to the light-emitting layer includes a regular pattern;

[0016] Optionally, the side wall surface of the blocking structure close to the light-emitting layer is wavy;

[0017] Optionally, a side wall surface of the blocking structure close to the light-emitting layer is sawtooth-shaped.

[0018] In one of the embodiments, the angle between the side wall of the blocking structure close to the light-emitting layer and the bottom wall of the blocking structure is in the range of [60°, 120°].

[0019] In one of the embodiments, the target layer includes the light-emitting layer and the cathode layer, and the barrier layer is disposed on a surface of the anode layer away from the array substrate;

[0020] Alternatively, the target layer includes the light-emitting layer, the cathode layer and the anode layer, and the barrier layer is disposed on the array substrate.

[0021] In one embodiment, the light-emitting layer includes a plurality of light-emitting units; each of the blocking structures is disposed around one of the light-emitting units;

[0022] Alternatively, each of the blocking structures is disposed on a partial side surface of a light emitting unit;

[0023] Alternatively, each of the blocking structures includes a plurality of blocking substructures, and the plurality of blocking substructures are arranged at intervals and surround one of the light-emitting units.

[0024] In one embodiment, it also includes:

[0025] A pixel definition layer is located on the array substrate; wherein,

[0026] The pixel definition layer includes a plurality of pixel openings, the light-emitting layer includes a plurality of light-emitting units corresponding one by one to the plurality of pixel openings, the light-emitting units are located in the corresponding pixel openings, each of the blocking structures is located in a pixel opening, wherein, in the pixel opening, the blocking structure is located between the pixel definition layer and the light-emitting unit.

[0027] In one of the embodiments, when the blocking structure absorbs the light emitted from the side of the light-emitting layer, the material of the blocking structure is a light-absorbing material;

[0028] Optionally, the optical density of the light absorbing material is greater than 8.

[0029] In one embodiment, it also includes:

[0030] The dynamic privacy protection layer is located on the side of the cathode layer away from the light-emitting layer, and is used to switch between the first state and the second state according to the applied electrical signal; wherein,

[0031] When the dynamic privacy protection layer is in the first state, the dynamic privacy protection layer is used to adjust the propagation direction of the light emitted from the side of the light emitting layer to converge toward the center of the display panel;

[0032] When the dynamic privacy protection layer is in the second state, the dynamic privacy protection layer is used to transmit the light emitted from the side of the light-emitting layer to the picture display side of the display panel.

[0033] In a second aspect, the present application further provides a display device, comprising a display panel as provided in any of the above embodiments.

[0034] The above-mentioned display panel and display device include an array substrate, an anode layer, a light-emitting layer and a cathode layer, wherein the anode layer is located on the array substrate, the light-emitting layer is located on a side surface of the anode layer away from the array substrate, and the cathode layer is located on a side surface of the light-emitting layer away from the anode layer; on this basis, a blocking layer is set, the blocking layer is located on the array substrate and the blocking layer includes a plurality of blocking structures, each blocking structure is set on the side of the target layer, and the target layer includes at least the light-emitting layer and the cathode layer, so that the blocking structure can absorb or reflect the light emitted from the side of the light-emitting layer, so that the light emitted from the side of the light-emitting layer cannot be transmitted to the picture display side of the display panel, thereby reducing the lateral display viewing angle of the display panel and realizing lateral privacy protection. The display panel is applied to the display device to realize lateral privacy protection of the display device. Compared with the external privacy protection film in the related art to realize lateral privacy protection, the solution of the present application improves the display brightness of the display device, thereby improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1is a schematic top view of a display panel in one embodiment;

[0037] Figure 2 for Figure 1 One of the cross-sections along line AA';

[0038] Figure 3 for Figure 1 Section 2 along line AA';

[0039] Figure 4 for Figure 1 Section 3 along line AA';

[0040] Figure 5 is one of the top views of a blocking structure in one embodiment;

[0041] Figure 6 A second top view of a blocking structure in one embodiment;

[0042] Figure 7 A third top view of a blocking structure in one embodiment;

[0043] Figure 8 is one of the cross-sectional views of a blocking structure in one embodiment;

[0044] Fig. 9 A second cross-sectional view of a blocking structure in an embodiment;

[0045] Fig.10 A third cross-sectional view of a blocking structure in an embodiment;

[0046] Fig.11 A fourth cross-sectional view of a blocking structure in one embodiment;

[0047] Fig.12 A fifth cross-sectional view of a blocking structure in one embodiment;

[0048] Fig.13 FIG. 4 is a fourth cross-sectional view of a display panel along line AA′ in an embodiment.

[0049] Explanation of the reference numerals: 110 - array substrate, 120 - anode layer, 121 - anode, 130 - light-emitting layer, 131 - light-emitting unit, 140 - cathode layer, 150 - blocking layer, 151 - blocking structure, 160 - pixel definition layer, 170 - encapsulation layer, 180 - dynamic anti-peeping layer. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] In an exemplary embodiment, in combination Figure 1 and Figure 2 , a display panel is provided, which includes an array substrate 110, an anode layer 120, a light-emitting layer 130, a cathode layer 140 and a blocking layer 150.

[0052] The array substrate 110 is used to support the film layers or devices such as the anode layer 120, the light-emitting layer 130, the cathode layer 140 and the barrier layer 150 in the display panel, and is used to control the current flowing into the light-emitting layer 130. The array substrate 110 may include a substrate and a plurality of thin film transistors (TFT) disposed on the substrate; wherein the substrate may be a hard substrate, the material of which may be glass or quartz, or a flexible substrate, the material of which may be polyimide, polystyrene, polyethylene terephthalate, polyparaxylene, polyethersulfone or polyethylene naphthalate, etc.; the plurality of thin film transistors may be arranged in an array on the substrate. The array substrate 110 may also include a planarization film layer covering the plurality of thin film transistors and the substrate to improve the flatness of the array substrate 110.

[0053] The anode layer 120 is located on the array substrate 110, for example, on the planarization film layer, and is used to provide the carriers required for light emission, such as holes, for the light emitting layer 130. The anode layer 120 may include a plurality of anodes 121, and the plurality of anodes 121 may be arranged corresponding to some thin film transistors in the array substrate 110. For example, each anode 121 may be connected to a corresponding thin film transistor through a via hole in the planarization film layer, and the switch of the corresponding thin film transistor may control whether to energize the anode 121, thereby controlling the light emission of the light emitting layer 130. The material of the anode layer 120 is generally a material with a high work function in order to improve the hole injection efficiency, and may be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO) or a transparent conductive polymer (such as polyaniline), etc., which is not specifically limited in this embodiment.

[0054] A pixel definition layer 160 may also be disposed on the array substrate 110 , and the pixel definition layer 160 covers the multiple anodes 121 and the array substrate 110 . The pixel definition layer 160 includes multiple pixel openings, and the multiple pixel openings may correspond one-to-one to the multiple anodes 121 , and each pixel opening exposes a corresponding anode 121 .

[0055] The light-emitting layer 130 is located on a side surface of the anode layer 120 away from the array substrate 110. The light-emitting layer 130 covers the pixel definition layer 160 and can cover the anode 121 exposed by the pixel opening to connect with the anode 121 so that the anode 121 can provide holes for the light-emitting layer 130. The light-emitting layer 130 may include a stacked hole injection layer, a hole transport layer, an OLED organic material layer, an electron transport layer, an electron injection layer, and the like.

[0056] The cathode layer 140 is located on the surface of the light-emitting layer 130 away from the anode layer 120, and is used to provide the light-emitting layer 130 with carriers required for light emission, such as electrons. The cathode layer 140 can be a whole film layer covering the light-emitting layer 130. The material of the cathode layer 140 generally uses a material with a low work function to facilitate electron injection. The material of the cathode layer 140 can be one of the metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca) or indium (In), and can also be an alloy of the aforementioned metal materials, such as magnesium silver alloy (Mg / Ag) and lithium aluminum alloy (Li / Al), which is not specifically limited in this embodiment.

[0057] The electrons provided by the cathode layer 140 and the holes provided by the anode layer 120 are combined in the light-emitting layer 130 to realize the light emission of the light-emitting layer 130. The light emission of the light-emitting layer 130 includes light emitted from the light-emitting layer 130 in various directions, such as light emitted from the light-emitting layer 130 in a direction perpendicular to the array substrate 110 and light emitted from the side of the light-emitting layer 130; wherein, the light emitted from the light-emitting layer 130 in a direction perpendicular to the array substrate 110 includes light away from the array substrate 110 and toward the screen display side of the display panel and light away from the screen display side and toward the array substrate 110; light away from the array substrate 110 and toward the screen display side is emitted from the screen display side, constituting the narrow display viewing angle light of the display panel; light away from the screen display side and toward the array substrate 110 cannot be emitted from the screen display side; light emitted from the side of the light-emitting layer 130 is emitted from the screen display side, constituting the wide display viewing angle light of the display panel.

[0058] The blocking layer 150 is located on the array substrate 110. The blocking layer 150 may include a plurality of blocking structures 151. Each blocking structure 151 is arranged on the side of the target layer. The target layer includes at least a cathode layer 140 and a light-emitting layer 130. The blocking structure 151 is used to absorb or reflect the light emitted from the side of the light-emitting layer 130, so that the light emitted from the side of the light-emitting layer 130 cannot propagate to the screen display side, that is, cannot be emitted from the screen display side, thereby reducing the wide display viewing angle light of the display panel, thereby reducing the lateral display viewing angle of the display panel and achieving lateral peeping protection.

[0059] Continue to refer Figure 2, the target layer may include a light emitting layer 130 of full thickness and a cathode layer 140 of partial thickness, at this time, the cathode layer 140 of partial thickness is separated by the blocking structure 151, and the cathode layer 140 of the remaining thickness is not separated by the blocking structure 151 but covers the surface of the blocking structure 151 away from the array substrate 110; refer to Figure 3 , the target layer may also include a light-emitting layer 130 of full thickness and a cathode layer 140 of full thickness. In this case, the cathode layer 140 of full thickness is separated by the blocking structure 151 and is divided into a plurality of cathodes. Among them, on the basis that the blocking structure 151 is located on the side of the light-emitting layer 130 of full thickness, a partial thickness or a full thickness of the cathode layer 140 is separated by the blocking structure 151, which is beneficial to absorbing or reflecting all light emitted from the side of the light-emitting layer 130, thereby achieving a good anti-peeping effect.

[0060] In the embodiment of the present application, within a pixel opening, the blocking structure 151 can be filled in the gaps between the pixel definition layer 160 and the anode 121, the light-emitting layer 130 and the cathode layer 140, so as to better absorb or reflect the light emitted from the side of the light-emitting layer 130, thereby achieving a lateral anti-peeping effect of the display panel.

[0061] In an exemplary embodiment, continue to refer to Figure 2 , the target layer includes a light emitting layer 130 and a cathode layer 140, and the barrier layer 150 is disposed on the surface of the anode layer 120 on the side away from the array substrate 110. It can be understood that, in a pixel opening: if there is no gap between the pixel definition layer 160 and the anode 121, but there are gaps between the pixel definition layer 160 and the light emitting layer 130 and the cathode layer 140, respectively, then the barrier layer 150 can be disposed on the surface of the anode on the side away from the array substrate 110, and at this time, the barrier structure 151 is located on the side of the light emitting layer 130 and the cathode layer 140.

[0062] In an exemplary embodiment, referring to Figure 4 , the target layer includes an anode layer 120, a light emitting layer 130 and a cathode layer 140, and the barrier layer 150 is disposed on the array substrate 110. It can be understood that, in a pixel opening: if there is a gap between the pixel definition layer 160 and the anode 121, and there is also a gap between the pixel definition layer 160 and the light emitting layer 130 and the cathode layer 140, then the barrier layer 150 can be disposed on the array substrate 110, and at this time, the barrier structure 151 is located on the side of the anode 121, the light emitting layer 130 and the cathode layer 140.

[0063] In an exemplary embodiment, when the blocking structure 151 absorbs the light emitted from the side of the light emitting layer 130, the material of the blocking structure 151 is a light absorbing material to ensure that the blocking structure 151 can absorb the light emitted from the side of the light emitting layer 130 to achieve the side anti-peeping effect of the display panel. For example, the optical density (OD) value of the light absorbing material is greater than 8.

[0064] In an exemplary embodiment, the light emitting layer 130 includes a plurality of light emitting units 131 corresponding one to the plurality of pixel openings, and each light emitting unit 131 includes a hole injection layer, a hole transport layer, an OLED organic material layer, an electron transport layer and an electron injection layer.

[0065] In an exemplary embodiment, a blocking structure 151 is correspondingly provided for each light emitting unit 131 of all the light emitting units 131 of the display panel. In this way, light emitted from the side of each light emitting unit 131 of all the light emitting units 131 of the display panel can be absorbed or reflected and cannot be emitted from the screen display side, so that the overall lateral anti-peeping capability of the display panel is stronger.

[0066] In an exemplary embodiment, a blocking structure 151 is correspondingly provided for each light-emitting unit 131 in the display panel portion of the light-emitting unit 131. In this way, the light emitted from the side of each light-emitting unit 131 in the display panel portion of the light-emitting unit 131 can be absorbed or reflected and cannot be emitted from the screen display side, which is beneficial for the overall lateral anti-peeping capability of the display panel to better match the actual anti-peeping needs of the user.

[0067] In the embodiment of the present application, the actual anti-peeping requirements of the user can be matched by adjusting the number of blocking structures 151 in the display panel, in other words, by adjusting the number of light-emitting units 131 provided with the blocking structures 151 in the display panel.

[0068] In an exemplary embodiment, referring to Figure 5 , each of the blocking structures 151 of the display panel is disposed around a light emitting unit 131 .

[0069] Among them, the blocking structure 151 surrounds the light-emitting unit 131, so that the blocking structure 151 is set on all sides of the light-emitting unit 131, so that the light emitted from all sides of the light-emitting unit 131 is absorbed or reflected by the blocking structure 151, and the light-emitting unit 131 has a strong lateral anti-peeping ability.

[0070] In an exemplary embodiment, referring to Figure 6 , each of the blocking structures 151 of the display panel is disposed on a partial side surface of a light emitting unit 131 .

[0071] The light emitting unit 131 may include multiple sides, for example, four sides. The blocking structure 151 is disposed on some sides of the light emitting unit 131, for example, on one, two or three sides of the light emitting unit 131, so that the light emitted from the side of the light emitting unit 131 is absorbed or reflected by the blocking structure 151, which is conducive to the anti-peeping capability of the light emitting unit 131 to better match the actual anti-peeping needs of the user.

[0072] In an exemplary embodiment, referring to Figure 7 Each of the blocking structures 151 of the display panel includes a plurality of blocking substructures, and the plurality of blocking substructures are arranged at intervals and surround a light emitting unit 131 .

[0073] Among them, the multiple blocking substructures of a blocking structure 151 can surround part or all of the sides of a light-emitting unit 131, so that part of the light emitted from the part or all of the sides of the light-emitting unit 131 is absorbed or reflected by the blocking structure 151, which is beneficial for the anti-peeping capability of the light-emitting unit 131 to better match the actual anti-peeping needs of the user.

[0074] In an exemplary embodiment, all the blocking structures 151 of the display panel may include a blocking structure 151 arranged around a light-emitting unit 131, a blocking structure 151 arranged on a partial side of a light-emitting unit 131, and a blocking structure 151 including a plurality of blocking substructures. At least one of the three blocking structures 151 may help the overall lateral anti-peeping capability of the display panel to better match the actual anti-peeping needs of the user.

[0075] In the embodiment of the present application, the actual anti-peeping needs of the user can be matched by adjusting the volume of the blocking structure 151 and / or the relative position setting relationship between the blocking structure 151 and the light-emitting unit 131.

[0076] In an exemplary embodiment, continue to refer to Figure 2 The side wall surface of the blocking structure 151 close to the light-emitting layer 130 is a flat surface, which can not only absorb or reflect the light emitted from the side of the light-emitting layer 130, but also makes the structure of the blocking structure 151 simple and easy to manufacture.

[0077] In an exemplary embodiment, continue to refer to Figure 4 The shape of the blocking structure 151 includes a rectangular parallelepiped. The rectangular blocking structure 151 can not only absorb the light emitted from the side of the light-emitting layer 130 by using its side wall surface, but also makes the blocking structure 151 simple in structure and easy to manufacture.

[0078] In an exemplary embodiment, referring to Figure 8The structure of the blocking structure 151 includes a prism structure. The blocking structure 151 with a prism structure can not only utilize the light reflection principle of the prism to reflect the light emitted from the side of the light-emitting layer 130 to propagate toward the array substrate 110, but also make the structure of the blocking structure 151 simple and easy to manufacture. It can also reflect the light of a specific angle emitted from the side of the light-emitting layer 130 to propagate toward the array substrate 110, which is beneficial for the anti-peeping capability of the display panel to better match the actual anti-peeping needs of the user.

[0079] In an exemplary embodiment, the side wall surface of the blocking structure 151 close to the light-emitting layer 130 is an uneven surface, which can absorb the light emitted from the side of the light-emitting layer 130. Compared with a flat surface, the uneven surface can absorb more light emitted from the side of the light-emitting layer 130, thereby achieving stronger lateral anti-peeping capability and reducing the wide display viewing angle light of the display panel.

[0080] In the embodiment of the present application, the shape of the sidewall surface of the blocking structure 151 close to the light emitting layer 130 may include a regular or irregular pattern.

[0081] In an exemplary embodiment, the sidewall surface of the blocking structure 151 close to the light emitting layer 130 has a regular pattern, such as a rectangular parallelepiped, a trapezoid, a step, etc., with protrusions on the sidewall surface.

[0082] In an exemplary embodiment, referring to Fig. 9 The sidewall surface of the blocking structure 151 close to the light emitting layer 130 is wavy. In this way, the blocking structure 151 can absorb more light emitted from the side of the light emitting layer 130, thereby achieving a stronger lateral anti-peeping capability and further reducing the wide display viewing angle light of the display panel.

[0083] In an exemplary embodiment, referring to Fig.10 The side wall surface of the blocking structure 151 close to the light emitting layer 130 is sawtooth-shaped. Thus, one surface S1 of the sawtooth can absorb the light emitted from the side of the light emitting layer 130, thereby realizing lateral privacy protection, while the other surface S2 of the sawtooth can absorb the light irradiated from the outside of the light emitting layer 130 (or the outside of the display panel), thereby reducing the interference of external light on the display of the display panel.

[0084] In the embodiment of the present application, as the shape of the side wall surface of the blocking structure 151 close to the light-emitting layer 130 varies, the amount of light emitted from the side of the light-emitting layer 130 absorbed by the blocking structure 151 varies, and the shape of the side wall surface of the blocking structure 151 can be adjusted to match the user's actual anti-peeping needs.

[0085] In an exemplary embodiment, the angle B between the side wall of the blocking structure 151 close to the light emitting layer 130 and the bottom wall of the blocking structure 151 is in the range of [60°, 120°].

[0086] Among them, reference Fig.11 The angle between the side wall of the blocking structure 151 close to the light emitting layer 130 and the bottom wall of the blocking structure 151 is an acute angle. Fig. 9 , the angle between the side wall of the blocking structure 151 close to the light emitting layer 130 and the bottom wall of the blocking structure 151 is a right angle, referring to Fig.12 The angle between the side wall of the blocking structure 151 close to the light emitting layer 130 and the bottom wall of the blocking structure 151 is an obtuse angle. Fig.11 , Figures 9 to 12 The blocking structure 151 absorbs light with different emission angles emitted from the side of the light-emitting layer 130. As the angle between the blocking structure 151 and the side wall of the light-emitting layer 130 and the array substrate 110 increases, the blocking structure 151 can absorb light with a wider range of emission angles, thereby reducing the wide display viewing angle light of the display panel and achieving a smaller lateral display viewing angle.

[0087] In the embodiment of the present application, the shape of the blocking structure 151 in the display panel and the shape of the sidewall surface of the blocking structure 151 can be adjusted to match the actual anti-peeping needs of the user.

[0088] In an exemplary embodiment, referring to Fig.13 The display panel further includes a dynamic privacy layer 180. The dynamic privacy layer 180 is located on a side of the cathode layer 140 away from the light-emitting layer 130, and is used to switch between the first state and the second state according to the applied electrical signal; wherein, when the dynamic privacy layer 180 is in the first state, the dynamic privacy layer 180 is used to adjust the propagation direction of the light emitted from the side of the light-emitting layer 130 to converge toward the center of the display panel; when the dynamic privacy layer 180 is in the second state, the dynamic privacy layer 180 is used to transmit the light emitted from the side of the light-emitting layer 130 to the screen display side.

[0089] For example, the structure of the dynamic privacy protection layer 180 can be a liquid crystal lens. The display panel may also include an encapsulation layer 170 for encapsulating and protecting the cathode layer 140, the light-emitting layer 130, the anode layer 120 and the array substrate 110, and the dynamic privacy protection layer 180 may be located on the side of the encapsulation layer 170 away from the array substrate 110. For example, the dynamic privacy protection layer 180 may be attached to the surface of the encapsulation layer 170 away from the array substrate 110. When the dynamic privacy protection layer 180 is in the first form, the dynamic privacy protection layer 180 has a lens function, which can converge the light emitted from the side of the light-emitting layer 130 (i.e., the viewing angle light of the edge area of ​​the display panel) to the center of the display panel, so that the viewing angle brightness of the edge position of the display panel is reduced, thereby realizing lateral privacy protection. When the dynamic privacy protection layer 180 is in the second form, the display panel displays at a normal viewing angle, and no lateral privacy protection is required.

[0090] The solution of this embodiment, by setting a dynamic anti-peeping layer 180, enables the display panel to switch between a wide display viewing angle and a narrow display viewing angle, thereby better meeting the user's anti-peeping needs.

[0091] In an exemplary embodiment, a display device is also provided. The display device includes the display panel in any of the above embodiments. The display device can be, but is not limited to, an electronic display product such as a mobile phone, a tablet, or a computer.

[0092] The display device and the display panel in the embodiments of the present application belong to the same inventive concept and can achieve the same technical effects, and the repeated contents will not be repeated here.

[0093] 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 application.

[0094] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: An array substrate; an anode layer, located on the array substrate; A light-emitting layer, located on a surface of the anode layer away from the array substrate; A cathode layer, located on a surface of the light-emitting layer away from the anode layer; A blocking layer is located on the array substrate; the blocking layer includes a plurality of blocking structures, each of which is arranged on the side of the target layer, and the blocking structure is used to absorb or reflect the light emitted from the side of the light-emitting layer, wherein the target layer at least includes the light-emitting layer and the cathode layer.

2. The display panel according to claim 1, characterized in that: The side wall surface of the blocking structure close to the light-emitting layer is a flat surface; Optionally, in the case where the blocking structure absorbs light emitted from the side of the light-emitting layer, the shape of the blocking structure includes a rectangular parallelepiped; Optionally, when the blocking structure reflects the light emitted from the side of the light-emitting layer, the blocking structure includes a prism structure.

3. The display panel according to claim 1, characterized in that: The blocking structure absorbs the light emitted from the side of the light-emitting layer, and the side wall surface of the blocking structure close to the light-emitting layer is a non-flat surface; Optionally, the shape of the side wall surface of the blocking structure close to the light-emitting layer includes a regular pattern; Optionally, the side wall surface of the blocking structure close to the light-emitting layer is wavy; Optionally, a side wall surface of the blocking structure close to the light-emitting layer is sawtooth-shaped.

4. The display panel according to claim 3, characterized in that: The included angle between the side wall of the blocking structure close to the light-emitting layer and the bottom wall of the blocking structure is in the range of [60°, 120°].

5. The display panel according to claim 1, characterized in that: The target layer includes the light-emitting layer and the cathode layer, and the barrier layer is arranged on a surface of the anode layer away from the array substrate; Alternatively, the target layer includes the light-emitting layer, the cathode layer and the anode layer, and the barrier layer is disposed on the array substrate.

6. The display panel according to claim 1, characterized in that: The light-emitting layer includes a plurality of light-emitting units; each of the blocking structures is arranged around one of the light-emitting units; Alternatively, each of the blocking structures is disposed on a partial side surface of a light emitting unit; Alternatively, each of the blocking structures includes a plurality of blocking substructures, and the plurality of blocking substructures are arranged at intervals and surround one of the light-emitting units.

7. The display panel according to claim 1, characterized in that: Also includes: A pixel definition layer is located on the array substrate; wherein, The pixel definition layer includes a plurality of pixel openings, the light-emitting layer includes a plurality of light-emitting units corresponding one by one to the plurality of pixel openings, the light-emitting units are located in the corresponding pixel openings, each of the blocking structures is located in a pixel opening, wherein, in the pixel opening, the blocking structure is located between the pixel definition layer and the light-emitting unit.

8. The display panel according to claim 1, characterized in that: The blocking structure absorbs the light emitted from the side of the light-emitting layer, and the material of the blocking structure is a light-absorbing material; Optionally, the optical density of the light absorbing material is greater than 8.

9. The display panel according to claim 1, characterized in that: Also includes: The dynamic privacy protection layer is located on the side of the cathode layer away from the light-emitting layer, and is used to switch between the first state and the second state according to the applied electrical signal; wherein, When the dynamic privacy protection layer is in the first state, the dynamic privacy protection layer is used to adjust the propagation direction of the light emitted from the side of the light emitting layer to converge toward the center of the display panel; When the dynamic privacy protection layer is in the second state, the dynamic privacy protection layer is used to transmit the light emitted from the side of the light-emitting layer to the picture display side of the display panel.

10. A display device, characterized in that: Comprising a display panel as described in any one of claims 1 to 9.

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