Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel includes: a display function layer including a plurality of pixels; a deformation structure is arranged in the peep-proof layer; the deformation structures are correspondingly arranged on the light emitting sides of the pixels; wherein the deformation structure is configured to deform under the action of an electric field. According to the display panel, the peep-proof effect at different display angles can be achieved, different pictures can be displayed at different angles, and therefore the privacy of the display panel is enhanced, and the user experience is improved.

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 continuous development of display technology, especially in portable electronic products such as mobile devices, tablets, smartphones and wearable devices, display screens have become the core component of user interaction.

[0003] However, in the process of using these devices, as the device size increases and the screen resolution improves, user privacy issues become increasingly serious, especially in public places, where the content of the display screen may be viewed by people around, thereby leaking personal privacy or sensitive information.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the invention

[0005] Based on this, the embodiments of the present application provide a display panel and a display device, which can achieve an anti-peeping effect at different display angles and display different pictures at different angles, thereby enhancing the privacy of the display panel and improving the user experience.

[0006] According to some embodiments, the present application provides a display panel, including:

[0007] A display functional layer including a plurality of pixels;

[0008] An anti-peeping layer, wherein a deformation structure is arranged in the anti-peeping layer; the deformation structure is arranged correspondingly on the light-emitting side of the pixel;

[0009] Wherein, the deformable structure is configured to deform under the action of an electric field.

[0010] In some embodiments, one of the pixels includes at least a first sub-pixel and a second sub-pixel;

[0011] The deformable structure includes a first sub-deformable structure and a second sub-deformable structure; the first sub-deformable structure is correspondingly arranged at the light-emitting side of the first sub-pixel, and the second sub-deformable structure is correspondingly arranged at the light-emitting side of the second sub-pixel;

[0012] The first sub-deformable structure is configured to undergo a first deformation under the action of a first electric field; and the second sub-deformable structure is configured to undergo a second deformation under the action of a second electric field.

[0013] In some embodiments, when the first deformation occurs in the first sub-deformable structure, at least a portion of the surface of the first sub-deformable structure away from the first sub-pixel has a first concave portion or a first convex portion, wherein the first concave portion is concavely arranged toward the first sub-pixel, and the first convex portion is convexly arranged away from the first sub-pixel;

[0014] When the second sub-deformation structure undergoes the second deformation, at least a portion of the surface of the second sub-deformation structure away from the second sub-pixel has a second recessed portion or a second protruding portion, wherein the second recessed portion is recessed toward the second sub-pixel, and the second protruding portion is protruding away from the second sub-pixel.

[0015] In some embodiments, in the first anti-peeping mode, the first sub-deformable structure maintains an initial state, and at least a portion of the surface of the second sub-deformable structure away from the second sub-pixel has the second protrusion.

[0016] In some embodiments, the display panel is configured as:

[0017] In the second anti-peeping mode, at least a portion of the surface of the first sub-deformation structure away from the first sub-pixel has the first recessed portion, and at least a portion of the surface of the second sub-deformation structure away from the second sub-pixel has the second protruding portion.

[0018] In some embodiments, the orthographic projection of the first sub-deformation structure on the display function layer completely covers the corresponding first sub-pixel; and the orthographic projection of the second sub-deformation structure on the display function layer completely covers the corresponding second sub-pixel.

[0019] In some embodiments, the display panel further comprises:

[0020] A first electrode and a second electrode corresponding to the first deformable sub-structure; under the action of a voltage difference between the first electrode and the second electrode, applying the first electric field to the first deformable sub-structure to achieve deformation of the first deformable sub-structure;

[0021] A third electrode and a fourth electrode corresponding to the second sub-deformable structure; under the action of the voltage difference between the third electrode and the fourth electrode, the second electric field is applied to the second sub-deformable structure to achieve deformation of the second sub-deformable structure.

[0022] In some embodiments, the first electrode and the second electrode are disposed at a side of the first sub-deformable structure away from the first sub-pixel and spaced apart from each other;

[0023] The third electrode and the fourth electrode are arranged at a distance from each other on a side of the second deformation sub-structure away from the second sub-pixel.

[0024] In some embodiments, the first electrode, the second electrode, the third electrode and the fourth electrode are disposed in the same layer.

[0025] In some embodiments, the privacy protection layer includes a first privacy protection sub-layer and a second privacy protection sub-layer stacked in sequence in a direction away from the display function layer;

[0026] The deformation structure includes a third sub-deformation structure and a fourth sub-deformation structure; the third sub-deformation structure is arranged in the first sub-peep-proof layer, and the fourth sub-deformation structure is arranged in the second sub-peep-proof layer;

[0027] The third sub-deformation structure is configured to change from the first state to the second state under the action of the third electric field; and the fourth sub-deformation structure is configured to undergo a fourth deformation under the action of the fourth electric field.

[0028] In some embodiments, the display panel is configured as:

[0029] In the third anti-peeping mode, the third sub-deformation structure changes from the first state to the second state, and the thickness of the third sub-deformation structure in the second state is greater than the thickness of the third sub-deformation structure in the first state; the fourth sub-deformation structure maintains the initial state.

[0030] In some embodiments, the display panel is configured as:

[0031] In the fourth anti-peeping mode, the third sub-deformation structure changes from the first state to the second state, and the thickness of the third sub-deformation structure in the second state is greater than the thickness of the third sub-deformation structure in the first state; the fourth sub-deformation structure has a fourth protrusion on at least part of the surface away from the first sub-anti-peeping layer, and the fourth protrusion is protruded away from the first sub-anti-peeping layer.

[0032] In some embodiments, the display panel further comprises:

[0033] A control circuit unit is disposed between the first sub-anti-peeping layer and the second sub-anti-peeping layer, and is used to apply the electric field to the deformable structure in the anti-peeping layer.

[0034] In some embodiments, the anti-peeping layer is made of dielectric elastomer materials such as silicone rubber, polyvinylidene fluoride, polyvinylidene fluoride copolymer, polyetherimide, a composite material containing nanoparticles or fillers, and / or a composite shape memory polymer containing a conductive filling layer.

[0035] According to some embodiments, the present application further provides a display device, including the display panel provided by the aforementioned embodiment.

[0036] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0037] The embodiments of the present application may or at least have the following advantages:

[0038] The display panel proposed in the present application has a deformable structure corresponding to the light-emitting side of the pixel, and the deformable structure is configured to be deformable under the action of an electric field. By setting up the deformable structure, the display panel can deform in response to the action of the electric field through the deformable structure while maintaining the normal display function, and dynamically adjust the light-emitting direction of the pixel, thereby achieving an anti-peeping effect at different display angles, and being able to display different images at different angles, thereby enhancing the privacy of the display panel and improving the user experience.

[0039] Other advantages, objectives and features of the present application will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application to some extent. The objectives and other advantages of the present application can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0041] Figure 1 is a schematic cross-sectional structural diagram of a display panel in some embodiments of the present application in a normal display state;

[0042] Figure 2 This is a schematic diagram of the structure of a display panel in some embodiments of the present application;

[0043] Figure 3 for Figure 2 A schematic diagram of the structure of any pixel in the display panel shown;

[0044] Figure 4 for Figure 1 The cross-sectional structure diagram of the display panel shown is in the first anti-peeping mode;

[0045] Figure 5 for Figure 1 The cross-sectional structure diagram of the display panel shown is in the second anti-peeping mode;

[0046] Figure 6 is a schematic cross-sectional structural diagram of a display panel in some other embodiments of the present application in a normal display state;

[0047] Figure 7 It is a partial cross-sectional view of a display panel in some other embodiments of the present application;

[0048] Figure 8 for Figure 6 The cross-sectional structure diagram of the display panel shown is in the third anti-peeping mode;

[0049] Fig. 9 for Figure 6 The cross-sectional structure diagram of the display panel shown is in the fourth anti-peeping mode;

[0050] Fig.10 This is a schematic diagram of the structure of a display device in some embodiments of the present application.

[0051] Description of reference numerals:

[0052] 1. display device; 10. display panel; 100. pixel; 1a. first sub-pixel; 1b. second sub-pixel;

[0053] 110, display function layer; 111, substrate; 112, pixel definition structure; 113, light emitting layer; 114, anode; 115, cathode; 116, encapsulation layer; 117, light shielding layer;

[0054] 120a, first sub-peeping layer; 120b, second sub-peeping layer; 121, first sub-deformation structure; 122, second sub-deformation structure; 123, third sub-deformation structure; 124, fourth sub-deformation structure;

[0055] 131. First electrode; 132. Second electrode; 133. Third electrode; 134. Fourth electrode; 130. Electrode layer; 135. Control circuit unit. DETAILED DESCRIPTION

[0056] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0058] It should be noted that the terms “vertical”, “horizontal”, “left”, “right” and similar expressions used in this document are for illustrative purposes only.

[0059] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be intervening layers. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers. In addition, the same reference numerals always represent the same elements.

[0060] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another. It will also be understood that expressions used in the singular include plural expressions unless the expression in the singular has an obviously different meaning in the context.

[0061] When a statement such as "at least one of..." is located after a list of elements, it modifies the entire list of elements rather than the individual elements in the list. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. As used in the application documents, the term "and / or" includes any and all combinations of one or more of the relevant listed items. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, components, parts, or combinations thereof.

[0062] During the use of traditional display devices, as the device size increases and the screen resolution improves, user privacy issues become increasingly serious, especially in public places, where the content of the display screen may be viewed by people around, thereby leaking personal privacy or sensitive information.

[0063] In view of the above shortcomings, the present application provides a display panel and a display device, which can achieve anti-peeping effects at different display angles and display different images at different angles, thereby enhancing the privacy of the display panel and improving the user experience. The details will be described in the subsequent embodiments.

[0064] The display panel proposed in this application is Figure 1The display panel involved in the present application may include, but is not limited to, an organic light emitting diode display panel (Organic Light Emitting Diode, referred to as OLED), a quantum dot electroluminescent display panel (Quantum Dot Light Emitting Diodes, referred to as QLED), a sub-millimeter light emitting diode display (Mini Light Emitting Diode Display, referred to as Mini LED) or a micro light emitting diode display (MicroLight Emitting Diode Display, referred to as Micro LED), etc. The embodiment of the present application is described by taking the display panel as an OLED display panel as an example.

[0065] Figure 2 The overall structure diagram of the display panel 10 is shown, and the pixels 100 are arranged in an array in the display area of ​​the display panel 10 . Figure 3 Shows Figure 2 Schematic diagram of the overall structure of one of the pixels 100. Exemplarily, the pixel 100 may be composed of an R pixel, a G pixel and a B pixel, and the R pixel, the G pixel and the B pixel may be composed of their respective corresponding sub-pixels 1a and 1b; for example, the B pixel may be composed of sub-pixels B1a and B1b.

[0066] Please continue reading Figure 1 The display panel proposed in this application includes: a display function layer 110 and an anti-peeping layer.

[0067] The display function layer 110 includes a plurality of pixels. Figure 1 As shown, a pixel may include at least a first sub-pixel 1a and a second sub-pixel 1b. Figure 3 It is understood that the first sub-pixel 1a and the second sub-pixel 1b may be, for example Figure 3 Sub-pixels B1a and B1b of the B pixel in .

[0068] A deformable structure may be provided in the anti-peeping layer, and the deformable structure is correspondingly provided on the light-emitting side of the pixel, wherein the deformable structure is configured to deform under the action of an electric field.

[0069] The display panel proposed in the present application has a deformable structure corresponding to the light-emitting side of the pixel, and the deformable structure is configured to be deformed under the action of an electric field. By setting the deformable structure, the display panel can deform in response to the electric field while maintaining the normal display function, and dynamically adjust the light-emitting direction of the pixel, thereby achieving an anti-peeping effect at different display angles, and being able to display different pictures at different angles. For example, it can block unwanted viewing angles to avoid being peeped by others. This enhances the privacy of the display panel and helps improve the user experience.

[0070] Please combine the following Figure 1 , Figure 4 and Figure 5 Understand some of the embodiments of this application.

[0071] In some embodiments, Figure 1 As shown, the deformation structure may include a first deformation substructure 121 and a second deformation substructure 122. The first deformation substructure 121 is correspondingly arranged at the light-emitting side of the first subpixel 1a, and the second deformation substructure 122 is correspondingly arranged at the light-emitting side of the second subpixel 1b.

[0072] The first deformation sub-structure 121 is configured to undergo a first deformation under the action of a first electric field; and the second deformation sub-structure 122 is configured to undergo a second deformation under the action of a second electric field.

[0073] The above-mentioned embodiment enables the display panel to achieve more precise anti-peeping control in different areas by respectively setting corresponding sub-deformation structures for the first sub-pixel 1a and the second sub-pixel 1b. In this embodiment, the anti-peeping effect of each sub-pixel can be adjusted separately according to the action of the electric field. For example, the first sub-deformation structure 121 is adjusted according to the action of the first electric field to adjust the anti-peeping effect of the first sub-pixel 1a, and the second sub-deformation structure 122 is adjusted according to the action of the second electric field to adjust the anti-peeping effect of the second sub-pixel 1b. As a result, this embodiment can adjust the visibility of the displayed content according to different viewing angles while ensuring the display quality, thereby achieving a more refined anti-peeping mode. This design method is suitable for a variety of different display requirements, especially for multi-level, high-resolution display panels, and can provide flexible anti-peeping functions according to user needs.

[0074] Please continue reading Figure 1 The orthographic projection of the first sub-deformable structure 121 on the display function layer 110 completely covers the corresponding first sub-pixel 1a, and the orthographic projection of the second sub-deformable structure 122 on the display function layer 110 completely covers the corresponding second sub-pixel 1b.

[0075] In the above embodiment, the orthographic projection of each sub-deformable structure on the display function layer 110 completely covers its corresponding sub-pixel, so that the deformable structure is precisely connected to the display function layer 110, thereby ensuring that the deformable structure can accurately affect the corresponding sub-pixel under the action of the electric field each time, avoiding insufficient anti-peeping effect due to inaccurate deformation range, thereby improving the reliability and stability of the anti-peeping function of the display panel.

[0076] In some embodiments, when the first sub-deformation structure 121 undergoes a first deformation, at least a portion of the surface of the first sub-deformation structure 121 away from the first sub-pixel 1a has a first recessed portion or a first protruding portion, wherein the first recessed portion is recessed toward the first sub-pixel 1a, and the first protruding portion is protruding away from the first sub-pixel 1a.

[0077] In some embodiments, when the second sub-deformation structure 122 undergoes a second deformation, at least a portion of the surface of the second sub-deformation structure 122 away from the second sub-pixel 1b has a second recessed portion or a second protruding portion, wherein the second recessed portion is recessed toward the second sub-pixel 1b, and the second protruding portion is protruding away from the second sub-pixel 1b.

[0078] The above embodiment further improves the diversity of the anti-peeping effect by forming a first recessed portion or a first protruding portion in the first sub-deformable structure 121, and / or forming a second recessed portion or a second protruding portion in the second sub-deformable structure 122. When the deformable structure undergoes the above deformation, not only the surface morphology of the anti-peeping layer is changed, but also the first sub-deformable structure 121 and the second sub-deformable structure 122 can be targeted to form corresponding recessed portions or protruding portions according to different electric field control modes, so as to accurately control the light emission and refraction direction of each sub-pixel, and realize fine-tuning of the light, so that when viewed from different angles, the display content of the display panel will change, thereby effectively improving the anti-peeping accuracy and further enhancing the privacy protection function.

[0079] It can be understood that the display panel proposed in the present application can dynamically adjust the visibility of the displayed content according to actual usage requirements and provide a variety of different anti-peeping modes.

[0080] Figure 1 A schematic diagram of the cross-sectional structure of a display panel in a normal mode according to some embodiments is shown.

[0081] Figure 4 for Figure 1 The cross-sectional structure diagram of the display panel in the first anti-peeping mode is shown. In the first anti-peeping mode, the first deformation sub-structure 121 maintains the initial state, and at least part of the surface of the second deformation sub-structure 122 away from the second sub-pixel 1b has a second protrusion.

[0082] It should be noted that, in the present application, the sub-deformable structure maintaining the initial state means that the surface of the sub-deformable structure away from the sub-pixel remains flat, and is neither concave toward the sub-pixel nor convex toward the sub-pixel.

[0083] Figure 5 for Figure 1 The cross-sectional structure diagram of the display panel in the second anti-peeping mode is shown. In the second anti-peeping mode, at least part of the surface of the first deformation substructure 121 away from the first subpixel 1a has a first concave portion, and at least part of the surface of the second deformation substructure 122 away from the second subpixel 1b has a second convex portion.

[0084] Please continue reading Figure 1 The display panel may further include a first electrode 131 and a second electrode 132 corresponding to the first deformation substructure 121. Under the action of the voltage difference between the first electrode 131 and the second electrode 132, a first electric field is applied to the first deformation substructure 121, thereby achieving deformation of the first deformation substructure 121.

[0085] like Figure 1 As shown, the display panel may further include a third electrode 133 and a fourth electrode 134 corresponding to the second deformation substructure 122. Under the action of the voltage difference between the third electrode 133 and the fourth electrode 134, a second electric field is applied to the second deformation substructure 122, thereby achieving deformation of the second deformation substructure 122.

[0086] In the above embodiment, the first electrode 131 and the second electrode 132, as well as the third electrode 133 and the fourth electrode 134 are respectively arranged for the first sub-deformable structure 121 and the second sub-deformable structure 122, so that the distribution of the electric field can be more accurately controlled and the deformable structure can be precisely deformed, thereby ensuring that the deformation effect of the deformable structure meets the design expectations and further optimizing the anti-peeping effect.

[0087] like Figure 1 As shown, the first electrode 131 and the second electrode 132 are arranged at a distance from each other on the side of the first sub-deformable structure 121 away from the first sub-pixel 1a; the third electrode 133 and the fourth electrode 134 are arranged at a distance from each other on the side of the second sub-deformable structure 122 away from the second sub-pixel 1b. In this way, it is not only possible to ensure that the electric field acts uniformly on a specific area of ​​the deformable structure, but also helps to avoid the problem of unstable deformation caused by uneven electric field, making the electric field effect more efficient and the response of the deformable structure more sensitive and accurate.

[0088] In some embodiments, the first electrode 131, the second electrode 132, the third electrode 133 and the fourth electrode 134 are disposed in the same layer, which helps to simplify the manufacturing process of the display panel and thus reduce the manufacturing cost.

[0089] For example, Figure 1 As shown, the first electrode 131 , the second electrode 132 , the third electrode 133 and the fourth electrode 134 are all encapsulated in the electrode layer 130 .

[0090] Please continue reading Figure 1 The display function layer 110 may further include a base substrate 111. The base substrate 111 may specifically include a substrate and a display driving circuit located on a surface of the substrate.

[0091] The display function layer 110 may further include a pixel definition layer, in which a pixel definition structure 112 is provided and has a first opening A and a second opening B, and the first opening A and the second opening B are located between two adjacent groups of pixel definition structures 112. The first opening A determines the light emitting area of ​​the first sub-pixel 1a, and the second opening B determines the light emitting area of ​​the second sub-pixel 1b.

[0092] by Figure 1 Any sub-pixel in the display function layer 110 is shown as an example. The sub-pixel may include a light-emitting layer 113 located between adjacent pixel definition structures 112 , and the light-emitting layer 113 is located between the anode 114 and the cathode 115 .

[0093] like Figure 1 As shown, the display function layer 110 may further include an encapsulation layer 116 located on the side of each sub-pixel away from the base substrate 111, and a light shielding layer 117 located on the side of the encapsulation layer 116 away from the base substrate 111. The orthographic projection of the light shielding layer 117 on the plane where the base substrate 111 is located at least partially overlaps with the orthographic projection of each sub-pixel on the plane where the base substrate 111 is located. Exemplarily, the light shielding layer 117 may be made of the same material as the black matrix BM.

[0094] It can be understood that the aforementioned base substrate 111, pixel definition structure 112, light-emitting layer 113, anode 114, cathode 115, packaging layer 116 and light-shielding layer 117 are all well known to those skilled in the art and are not the focus of this application, so their specific structures and principles will not be described here in detail.

[0095] Please combine the following Figures 6 to 9 Understand other optional embodiments of the present application.

[0096] See also Figure 6 In some embodiments, the privacy protection layer may include a first privacy protection sub-layer 120 a and a second privacy protection sub-layer 120 b stacked sequentially in a direction away from the display function layer 110 .

[0097] Combination Figure 7It is understood that in this embodiment, the deformation structure may include a third deformation sub-structure 123 and a fourth deformation sub-structure 124. The third deformation sub-structure 123 is disposed in the first sub-peep-proof layer 120a, and the fourth deformation sub-structure 124 is disposed in the second sub-peep-proof layer 120b.

[0098] The third deformation sub-structure 123 is configured to change from the first state to the second state under the action of the third electric field; and the fourth deformation sub-structure 124 is configured to undergo a fourth deformation under the action of the fourth electric field.

[0099] By providing two independent sub-peeping layers, namely the first sub-peeping layer 120a and the second sub-peeping layer 120b, and correspondingly providing the third sub-deformable structure 123 and the fourth sub-deformable structure 124 therein, the propagation path of the light beam can be more accurately controlled, thereby improving the anti-peeping effect. The third sub-deformable structure 123 and the fourth sub-deformable structure 124 can deform differently under the action of different electric fields, making the process of dynamically adjusting the anti-peeping effect according to user needs or environmental changes more flexible.

[0100] Figure 6 Schematic diagrams of cross-sectional structures of display panels of other embodiments in a normal mode are shown.

[0101] Figure 8 for Figure 6 The cross-sectional structure diagram of the display panel in the third anti-peeping mode is shown. In the third anti-peeping mode, the third sub-deformable structure 123 changes from the first state to the second state, and the thickness of the third sub-deformable structure 123 in the second state is greater than the thickness of the third sub-deformable structure 123 in the first state. The fourth sub-deformable structure 124 maintains the initial state.

[0102] In the third anti-peeping mode, the thickness of the third sub-deformable structure 123 increases, so that it has a stronger optical blocking ability, thereby effectively preventing light beams from passing through from the upper and lower directions, thereby achieving the purpose of anti-peeping.

[0103] Fig. 9 for Figure 6 The cross-sectional structure diagram of the display panel in the fourth anti-peeping mode is shown. In the fourth anti-peeping mode, the third sub-deformable structure 123 changes from the first state to the second state, and the thickness of the third sub-deformable structure 123 in the second state is greater than the thickness of the third sub-deformable structure 123 in the first state. The fourth sub-deformable structure 124 has a fourth protrusion on at least a portion of the surface away from the first sub-peeping layer 120a, and the fourth protrusion is protruding away from the first sub-peeping layer 120a.

[0104] In the fourth anti-peeping mode, a fourth protrusion is formed on the surface of the fourth sub-deformation structure 124. When the light beam encounters the fourth protrusion, it is scattered or reflected, changing its original propagation path, causing the light beam to be unable to directly enter the user's eyes, reducing the visual information when observing from the side, thereby effectively blocking the light from the left and right directions and enhancing the anti-peeping performance of the display panel.

[0105] Please continue reading Figure 6 and Figure 7 In some embodiments, the display panel may further include a control circuit unit 135. Figure 6 As shown, the control circuit unit 135 can be disposed between the first sub-peeping layer 120a and the second sub-peeping layer 120b to apply an electric field to the deformable structure in the peeping layer.

[0106] In the above embodiment, the electric field applied by the control circuit unit 135 can be adjusted according to actual usage requirements, thereby controlling the distribution of internal stress of the third sub-deformation structure 123 and the fourth sub-deformation structure 124 and changing the curvature of the third sub-deformation structure 123 and the fourth sub-deformation structure 124.

[0107] It should be noted that the embodiments of the present application do not specifically limit the constituent materials of the anti-peep layer. In some embodiments, the constituent material of the anti-peep layer may be a reversible elastic material. Exemplarily, the reversible elastic material may include dielectric elastomer materials such as silicone rubber, polyvinylidene fluoride, polyvinylidene fluoride copolymer, polyetherimide, a composite material containing nanoparticles or fillers, and / or a composite shape memory polymer containing a conductive filling layer, etc., but is not limited thereto. The conductive filling layer may include, but is not limited to, carbon nanotubes, graphene, and metal nanoparticles, etc.

[0108] Based on the same inventive concept, the present application also provides a display device. Fig.10 The display device 1 includes the display panel 10 provided in the above embodiment. The display device 1 can also achieve the technical effects that the above display panel 10 can achieve, which will not be described in detail here.

[0109] It can be understood that the display device 1 in the embodiment of the present application can be an OLED display device, a QLED display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a wearable device, an Internet of Things device, or any other product or component with a display function, and the embodiment of the present application is not limited to this.

[0110] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features of the above-described 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.

[0111] 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 construed as limiting the scope of the patent 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 patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: A display functional layer including a plurality of pixels; An anti-peeping layer, wherein a deformation structure is arranged in the anti-peeping layer; The deformation structure is correspondingly arranged on the light-emitting side of the pixel; Wherein, the deformable structure is configured to deform under the action of an electric field.

2. The display panel according to claim 1, characterized in that: One of the pixels at least includes a first sub-pixel and a second sub-pixel; The deformable structure includes a first sub-deformable structure and a second sub-deformable structure; the first sub-deformable structure is correspondingly arranged at the light-emitting side of the first sub-pixel, and the second sub-deformable structure is correspondingly arranged at the light-emitting side of the second sub-pixel; The first sub-deformable structure is configured to undergo a first deformation under the action of a first electric field; and the second sub-deformable structure is configured to undergo a second deformation under the action of a second electric field.

3. The display panel according to claim 2, characterized in that: When the first deformation occurs in the first sub-deformable structure, at least a portion of the surface of the first sub-deformable structure away from the first sub-pixel has a first concave portion or a first convex portion, wherein the first concave portion is concavely arranged toward the first sub-pixel, and the first convex portion is convexly arranged away from the first sub-pixel; When the second sub-deformation structure undergoes the second deformation, at least a portion of the surface of the second sub-deformation structure away from the second sub-pixel has a second recessed portion or a second protruding portion, wherein the second recessed portion is recessed toward the second sub-pixel, and the second protruding portion is protruding away from the second sub-pixel.

4. The display panel according to claim 3, characterized in that: The display panel is configured as follows: In the first anti-peeping mode, the first sub-deformable structure maintains an initial state, and at least a portion of the surface of the second sub-deformable structure away from the second sub-pixel has the second protrusion.

5. The display panel according to claim 3, characterized in that: The display panel is configured as follows: In the second anti-peeping mode, at least a portion of the surface of the first sub-deformation structure away from the first sub-pixel has the first recessed portion, and at least a portion of the surface of the second sub-deformation structure away from the second sub-pixel has the second protruding portion.

6. The display panel according to claim 2, characterized in that: The orthographic projection of the first sub-deformation structure on the display function layer completely covers the corresponding first sub-pixel; the orthographic projection of the second sub-deformation structure on the display function layer completely covers the corresponding second sub-pixel.

7. The display panel according to claim 2, characterized in that: The display panel further includes: A first electrode and a second electrode corresponding to the first deformable sub-structure; under the action of a voltage difference between the first electrode and the second electrode, applying the first electric field to the first deformable sub-structure to achieve deformation of the first deformable sub-structure; A third electrode and a fourth electrode corresponding to the second sub-deformable structure; under the action of the voltage difference between the third electrode and the fourth electrode, the second electric field is applied to the second sub-deformable structure to achieve deformation of the second sub-deformable structure.

8. The display panel according to claim 7, characterized in that: The first electrode and the second electrode are arranged at a distance from each other on a side of the first sub-deformable structure away from the first sub-pixel; The third electrode and the fourth electrode are arranged at a distance from each other on a side of the second deformation sub-structure away from the second sub-pixel.

9. The display panel according to claim 8, characterized in that: The first electrode, the second electrode, the third electrode and the fourth electrode are arranged in the same layer.

10. The display panel according to claim 1, characterized in that: The anti-peeping layer comprises a first sub-anti-peeping layer and a second sub-anti-peeping layer stacked in sequence in a direction away from the display function layer; The deformation structure includes a third sub-deformation structure and a fourth sub-deformation structure; the third sub-deformation structure is arranged in the first sub-peep-proof layer, and the fourth sub-deformation structure is arranged in the second sub-peep-proof layer; The third sub-deformation structure is configured to change from the first state to the second state under the action of the third electric field; and the fourth sub-deformation structure is configured to undergo a fourth deformation under the action of the fourth electric field.

11. The display panel according to claim 10, characterized in that: The display panel is configured as follows: In the third anti-peeping mode, the third sub-deformation structure changes from the first state to the second state, and the thickness of the third sub-deformation structure in the second state is greater than the thickness of the third sub-deformation structure in the first state; the fourth sub-deformation structure maintains the initial state.

12. The display panel according to claim 10, characterized in that: The display panel is configured as follows: In the fourth anti-peeping mode, the third sub-deformation structure changes from the first state to the second state, and the thickness of the third sub-deformation structure in the second state is greater than the thickness of the third sub-deformation structure in the first state; the fourth sub-deformation structure has a fourth protrusion on at least part of the surface away from the first sub-anti-peeping layer, and the fourth protrusion is protruded away from the first sub-anti-peeping layer.

13. The display panel according to claim 10, characterized in that: The display panel further includes: A control circuit unit is disposed between the first sub-anti-peeping layer and the second sub-anti-peeping layer, and is used to apply the electric field to the deformable structure in the anti-peeping layer.

14. The display panel according to claim 1, characterized in that: The material constituting the privacy protection layer includes dielectric elastomer materials such as silicone rubber, polyvinylidene fluoride, polyvinylidene fluoride copolymer, polyetherimide, composite materials containing nanoparticles or fillers, and / or composite shape memory polymers containing conductive filling layers.

15. A display device, characterized in that: The invention comprises the display panel as claimed in any one of claims 1 to 14.

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