Display panel, display device and control method thereof

Abstract

The present invention discloses a display panel, a display device, and a control method thereof. The display panel includes a base substrate; a light-emitting layer, disposed on one side of the base substrate and including at least one light-emitting unit; and an anti-peeping device, including at least one deformable component and at least one electrostrictive component. The deformable component is made of a light-transmitting material and disposed on a side of the light-emitting unit facing away from the base substrate. The electrostrictive component is capable of stretching and deforming. The electrostrictive component abuts against the deformable component through the stretching and deformation to construct the deformable component into a first preset shape. In this case, the surface of the deformable component facing away from the light-emitting unit is a convex arc surface. The present invention shapes the deformable component into the first preset shape by changing the volume of the electrostrictive component, so that the surface of the deformable component facing away from the light-emitting unit forms a convex arc surface. This changes the refraction angle of light emitted by the light-emitting unit, causing the light to converge, thereby achieving an anti-peeping effect and improving the display brightness of the display panel.

Description

Technical Field

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

[0002] With the development of display technology, users are increasingly demanding higher functionality from displays. For example, users require different viewing angles for different applications. When users are in a sharing environment, such as watching a program with others, they need a display with a wider viewing angle to facilitate sharing. However, when users are in an open environment where confidentiality is required, such as entering passwords for various online payment methods or viewing private or confidential information in a public environment, they need a display with a narrower viewing angle to prevent prying eyes and protect personal privacy.

[0003] Current anti-peeping display devices include: 1. Attached privacy film: This method involves attaching a privacy device designed to block light from a wide viewing angle to the surface of an existing display device. This privacy device can be controlled by circuitry to achieve this goal. 2. Double-layer liquid crystal cell: This method involves adding a privacy-blocking liquid crystal cell to the existing liquid crystal cell. The bottom layer displays normally, while the privacy-blocking liquid crystal cell uses TN mode for privacy protection. However, since these privacy-blocking display devices operate on the principle of light blocking, this can significantly reduce the brightness of the display, impacting the user experience. Summary of the Invention

[0004] In order to solve the above problems, the present application provides a display panel, a display device and a control method thereof.

[0005] According to one aspect of an embodiment of the present application, a display panel is disclosed, comprising a base substrate; a light-emitting layer disposed on one side of the base substrate and including at least one light-emitting unit; and a privacy protection device comprising at least one deformable component and at least one electrostrictive component, wherein the deformable component is made of a light-transmitting material and is disposed on a side of the light-emitting unit facing away from the base substrate. The electrostrictive component is capable of stretching and deforming, and is configured to abut against the deformable component through stretching and deforming to configure the deformable component into a first preset shape. When the deformable component is in the first preset shape, a surface of the deformable component facing away from the light-emitting unit is a convex arc surface.

[0006] In an exemplary embodiment, the electrostrictive component is further configured to construct the deformable component into a second preset shape, wherein when the deformable component is in the second preset shape, the surface of the deformable component on the side facing away from the light-emitting unit is flat.

[0007] In an exemplary embodiment, the deformable component includes an elastic wrapping member and a filling liquid filled in a cavity surrounded by the elastic wrapping member. The elastic wrapping member is arranged on the side of the light-emitting unit facing away from the substrate. The side wall of the elastic wrapping member facing away from the light-emitting unit is an adjustment wall. The electrostrictive component is configured to be able to squeeze or release the elastic wrapping member through telescopic deformation. When the elastic wrapping member is deformed under the squeezing of the electrostrictive component, the adjustment wall bulges in a direction away from the light-emitting unit to form an arc shape. When the electrostrictive component releases the elastic wrapping member, the adjustment wall returns to a flattened state.

[0008] In an exemplary embodiment, the electrostrictive component is disposed on a side of the light-emitting layer facing away from the base substrate, at least two electrostrictive components are provided, and the deformable component is disposed between two adjacent electrostrictive components. The two adjacent electrostrictive components are configured to press the deformable component toward each other, or to move relatively away from each other and release the deformable component.

[0009] In an exemplary embodiment, the electrostrictive component includes a first electrode, a second electrode, and an electroexpandable member, the electroexpandable member being disposed on the light-emitting layer, the first electrode and the second electrode being respectively disposed on two opposing side walls of the electroexpandable member, one of the first electrode and the second electrode facing the deformable member, and the electroexpandable member being configured to expand along the direction of the electric field formed by the first and second electrodes when energized; and / or the electrostrictive component extending in a strip shape, a plurality of the electrostrictive components being spaced side by side, and the light-emitting unit being located between two adjacent electrostrictive components. The light-emitting units are arranged at intervals along an extension direction parallel to the electrostrictive component, and the deformable component is located between two adjacent electrostrictive components; and / or the deformable component includes a surrounding edge and an elastic adjustment wall, the surrounding edge is connected to the side of the adjustment wall, the side of the surrounding edge facing away from the adjustment wall is in contact with the light-emitting layer, and a filling liquid is filled in a cavity enclosed by the surrounding edge and the adjustment wall. When the electrostrictive component compresses the deformable component, the electrostrictive component presses against the surrounding edge. When the electrostrictive component releases the deformable component, the adjustment wall extends in a planar manner.

[0010] In an exemplary embodiment, the anti-peeping device also includes at least one first cover body, the first cover body is made of a light-transmitting material, the first cover body is located on the side of the deformable component facing away from the light-emitting unit, the first cover body is arc-shaped and its opening faces the light-emitting unit, and when the deformable component is in the first preset shape, the surface of the deformable component facing away from the light-emitting unit is in contact with the inner wall of the first cover body.

[0011] In an exemplary embodiment, at least two electrostrictive components are provided at intervals, the first cover corresponds to a position between two adjacent electrostrictive components, the electrostrictive component is located between the deformable component and the base substrate, the electrostrictive component is configured to compress the deformable component in a direction perpendicular to the base substrate so as to deform the deformable component so as to fill the first cover, and when the electrostrictive component releases the deformable component, the deformable component exits the first cover.

[0012] In an exemplary embodiment, the privacy protection device further comprises a second cover body, the second cover body is made of a light-transmitting material, the second cover body is arranged on the light-emitting layer, the second cover body forms a rectangular cavity, the deformable component is filled on the second cover body, an avoidance through-hole is provided on the side wall of the second cover body facing the light-emitting layer, one end of the electrostrictive component facing the deformable component is opposite to the avoidance through-hole, the first cover body is arranged on the side of the second cover body facing away from the light-emitting layer and is connected to the first cover body; and / or the deformable component is laid on the light-emitting layer, the electrostrictive component extends in a strip shape, a plurality of the electrostrictive components are arranged side by side at intervals, the light-emitting unit is located between two adjacent electrostrictive components, and the light-emitting unit is arranged along a plane. A plurality of electrostrictive components are arranged at intervals in the extension direction of the electrostrictive component; and / or the electrostrictive component extends in a strip shape, the plurality of electrostrictive components are arranged crisscross and horizontally to form a grid, the first cover bodies are opposite to each other on the grid formed by the plurality of electrostrictive components, and all of the first covers are opposite to at least one of the light-emitting units; and / or the electrostrictive component includes a first electrode, a second electrode, and an electroexpandable element, the first electrode and the second electrode are respectively provided on two opposite side walls of the electroexpandable element, the end surface of the first electrode facing away from the electroexpandable element is provided on the base substrate, the second electrode is opposite to the deformable element, and the electroexpandable element is configured to expand along the direction of the electric field formed by the first and second electrodes when energized.

[0013] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0014] The display panel disclosed in the present application has an anti-peeping device, which includes a deformable component and an electrostrictive component. The substrate, the light-emitting layer, and the deformable component are arranged in sequence. The light-emitting layer includes a light-emitting unit, which faces the deformable component. The electrostrictive element can be deformed and stretched to abut against the deformable component. The present application shapes the deformable component into a first preset shape by changing the volume of the electrostrictive component, so that the side surface of the deformable component facing away from the light-emitting unit forms a convex arc surface. At this time, the light-transmitting deformable component is in the form of a convex lens, which can change the refraction angle of the light emitted by the light-emitting unit, causing the light to converge and form collimated light. This not only reduces light divergence and forms a narrower viewing angle to achieve an anti-peeping effect, but also the deformable component increases the display brightness of the display panel, improving the user experience.

[0015] According to one aspect of an embodiment of the present application, a display device is disclosed. The display device includes the aforementioned display panel, and further includes a control system electrically connected to the electrostrictive component. The control system is configured to: obtain an anti-peeping mode signal to control the electrostrictive component to be powered on or off based on the obtained anti-peeping mode signal, so that the electrostrictive component forms the deformable component into the first preset shape; and obtain an open mode signal to control the electrostrictive component to be powered on or off based on the obtained open mode signal, so that the electrostrictive component stops forming the deformable component into the first preset shape.

[0016] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0017] The display device disclosed in the present application includes a display panel and a control system. A user can output an anti-peeping mode signal or an open mode signal to the control system, causing the control system to power on or off the electrostrictive component in the display panel, thereby changing the shape of the deformable component. In the anti-peeping mode, the deformable component is constructed into a first preset shape, and light passing through the deformable component is converged to form collimated light, which not only reduces light divergence and forms a narrower viewing angle to achieve an anti-peeping effect. In the open mode, the deformable component stops constructing into the first preset shape, and light passing through the deformable component can be diverged, making it easier for users to share displayed content. The control system controls the expansion and contraction of the electrostrictive component to achieve shape switching of the deformable component, which can improve control effects and facilitate user use.

[0018] According to one aspect of an embodiment of the present application, a method for controlling a display device is disclosed. The method is applicable to the aforementioned display device and includes the following steps: obtaining an anti-peeping mode signal to control the electrostrictive component to be powered on or off based on the obtained anti-peeping mode signal, so that the electrostrictive component forms the deformable component into the first preset shape; and obtaining an open mode signal to control the electrostrictive component to be powered on or off based on the obtained open mode signal, so that the electrostrictive component stops forming the deformable component into the first preset shape.

[0019] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0020] The present application discloses a method for controlling a display device. When a user is in an open environment requiring confidentiality, a controller receives an anti-peeping mode signal to control the powering on or off of an electrostrictive component, allowing the electrostrictive component to configure a deformable component into a first preset shape, placing the deformable component in an anti-peeping state. When the user is in an environment requiring sharing, the controller receives an open mode signal to control the powering off or on of the electrostrictive component, causing the electrostrictive component to stop configuring the deformable component into the first preset shape, placing the deformable component in an open state. The present application switches the electrostrictive component between the anti-peeping state and the open state by energizing or de-energizing the electrostrictive component based on the anti-peeping mode signal and the open mode signal, respectively. This method satisfies the user's viewing angle requirements for the display in different application scenarios and improves the user experience.

[0021] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 A cross-sectional view of a display panel in an open mode provided by an embodiment of the present application;

[0024] Figure 2 A cross-sectional view of a display panel in an anti-peeping mode provided by an embodiment of the present application;

[0025] Figure 3 A cross-sectional view of a display panel in an open mode provided by an embodiment of the present application;

[0026] Figure 4 A cross-sectional view of a display panel in an anti-peeping mode provided by an embodiment of the present application;

[0027] Figure 5A plan view of a display panel provided in an embodiment of the present application, wherein the display panel has an anti-peeping effect along the left and right directions;

[0028] Figure 6 A plan view of a display panel provided in an embodiment of the present application, wherein the display panel has an anti-peeping effect along the front-to-back direction;

[0029] Figure 7 A plan view of a display panel provided in an embodiment of the present application, wherein the display panel has an anti-peeping effect along the front-back and left-right directions;

[0030] Figure 8 A simplified structural diagram of a display device provided in one embodiment of the present application;

[0031] Figure 9 This is a flowchart of a method for controlling a display device provided in one embodiment of the present application.

[0032] The following are the descriptions of the reference numerals:

[0033] 100-light-emitting layer, 101-light-emitting unit, 102-protective layer, 110-electrostrictive component, 111-first electrode, 112-second electrode, 113-electrostrictive component, 120-deformable component, 121-edge, 122-adjustment wall, 123-filling liquid, 124-elastic wrapping member, 130-base substrate, 311-first cover body, 312-second cover body, 313-avoidance through hole, 320-soft film, 510-pillar, 810-display device, 820-display panel, 830-control system. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0035] In the description of this invention, all connection relationships mentioned do not refer solely to direct connection of components. Instead, they refer to the possibility of forming a more optimal connection structure by adding or removing auxiliary connection components according to specific implementation circumstances. The various technical features of this invention may be combined interchangeably as long as they do not conflict with each other.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, “several” means one or more, “more” means more than two, “greater than”, “less than”, “exceed”, etc. are understood as excluding the number itself, and “above”, “below”, “within”, etc. are understood as including the number itself.

[0039] Reference Figure 2 and Figure 4 The display panel provided in the present application includes a base substrate 130, a light-emitting layer 100, and an anti-peeping device. The light-emitting layer 100 is arranged on one side of the base substrate 130 and includes at least one light-emitting unit 101. The anti-peeping device includes at least one deformable component 120 and at least one electrostrictive component 110. The deformable component 120 is made of a light-transmitting material and is arranged on the side of the light-emitting unit 101 facing away from the base substrate 130. The electrostrictive component 110 can be deformed by expansion and contraction. The electrostrictive component 110 is used to abut against the deformable component 120 through expansion and contraction to construct the deformable component 120 into a first preset shape. When the deformable component 120 is in the first preset shape, the surface of the deformable component 120 facing away from the light-emitting unit 101 is a convex arc surface.

[0040] Specifically, the base substrate 130, the light-emitting layer 100, and the deformable component 120 are sequentially connected and arranged. The light-emitting layer 100 includes a light-emitting unit 101, which faces the deformable component 120. The electrostrictive component 110 can be deformed and extended to abut against the deformable component 120. In this application, the deformable component 120 is configured into a first predetermined shape by changing the volume of the electrostrictive component 110. The surface of the deformable component 120 facing away from the light-emitting unit 101 is formed into a curved surface, which is convex in the direction away from the light-emitting unit 101. At this time, the entirely light-transmissive deformable component 120 is in the form of a convex lens, which can change the refraction angle of light emitted by the light-emitting unit 101, causing the light to converge and form collimated light. This not only reduces light divergence and forms a narrower viewing angle to achieve a privacy protection effect, but also increases the display brightness of the display panel, improving the user experience. In fact, the light-emitting layer 100 includes a protective layer 102 and a light-emitting unit 101 embedded in the protective layer 102 , and the deformable component 120 is disposed on the protective layer 102 .

[0041] Further, refer to Figure 1 and Figure 3In order to improve the viewing experience of the user when the display panel is in the open mode and meet the visual needs, in this embodiment, the electrostrictive component 110 is further configured to construct the deformable component 120 into a second preset shape, wherein, when the deformable component 120 is in the second preset shape, the surface of the deformable component 120 on the side facing away from the light-emitting unit 101 is flat.

[0042] Specifically, when the deformable component 120 is configured in the second preset shape, it assumes the form of a plane mirror, capable of scattering light incident from the light-emitting unit 101, thereby improving the viewing angle when the display panel is in open mode and facilitating user viewing. In practice, the electrostrictive component 110 enables the deformable component 120 to switch between the first and second preset shapes to adjust the angle of light emitted by the light-emitting unit 101 after passing through the elastic wrapping member 124. It should be noted that when the deformable component 120 is in the second preset shape, the surface of the deformable component 120 facing away from the light-emitting unit 101 may also be a convex curved surface, as long as the refractive index of the curved surface of the deformable component 120 in the second preset shape is lower than that of the curved surface of the deformable component 120 in the first preset shape. This ensures that the deformable component 120 in the second preset shape consistently scatters light, facilitating user sharing of displayed content.

[0043] Furthermore, the deformable component 120 includes an elastic wrapping member 124 and a filling liquid 123 filled in the cavity surrounded by the elastic wrapping member 124. The elastic wrapping member 124 is arranged on the side of the light-emitting unit 101 facing away from the base substrate 130. The side wall of the elastic wrapping member 124 facing away from the light-emitting unit 101 is an adjustment wall 122. The electrostrictive component 110 is configured to be able to squeeze or release the elastic wrapping member 124 through telescopic deformation. When the elastic wrapping member 124 is deformed under the squeezing of the electrostrictive component 110, the adjustment wall 122 bulges in the direction away from the light-emitting unit 101 to form an arc shape. When the electrostrictive component 110 releases the elastic wrapping member 124, the adjustment wall 122 returns to the flattened state.

[0044] Specifically, the deformable component 120 includes an elastic wrapping member 124 and a filling liquid 123 filled in the elastic wrapping member 124. One side of the elastic wrapping member 124 is disposed on the light-emitting layer 100. The elastic wrapping member 124 has an escape space on its side away from the light-emitting layer 100, so that the adjustment wall 122 of the elastic wrapping member 124 faces the escape space. When the electrostrictive component 110 compresses the elastic wrapping member 124 through telescopic deformation, the elastic wrapping member 124 can be compressed and deformed, and its unrestricted adjustment wall 122 bulges toward the escape space to form an arc surface. After the electrostrictive component 110 releases the compression of the elastic wrapping member 124, the elastic wrapping member 124 rebounds, causing the adjustment wall 122 to return to a flattened direction, thereby enabling the deformable component 120 to switch back and forth between the anti-peek state and the open state. Furthermore, the cavity enclosed by the elastic wrapping member 124 is filled with a filling liquid 123. The filling liquid 123 flows within the elastic wrapping member 124, making it easier for the deformable member 120 to deform under the pressure of the electrostrictive member 110. Both the elastic wrapping member 124 and the filling liquid 123 are made of transparent materials, and their refractive indices are similar. In this embodiment, the filling liquid 123 is a high-refractive-index silicone oil. It should be noted that the deformable member 120 can also be a completely transparent elastic structure, with the shape of the deformable member 120 changing through elastic recovery and the pressure of the electrostrictive member 110. Alternatively, the shape of the deformable member 120 can be changed solely through the deformation and abutment of the electrostrictive member 110.

[0045] In addition, in order to regularize the deformation effect of the deformable component 120 to form the first preset shape, the anti-peeping device also includes at least one first cover body 311. The first cover body 311 is made of a light-transmitting material. The first cover body 311 is located on the side of the deformable component 120 facing away from the light-emitting unit 101. The first cover body 311 is arc-shaped and its opening faces the light-emitting unit 101. When the deformable component 120 is in the first preset shape, the surface of the deformable component 120 facing away from the light-emitting unit 101 is in contact with the inner wall of the first cover body 311. Specifically, the first cover 311 covers the side of the deformable component 120 facing away from the light-emitting unit 101. After the deformable component 120 is pressed against the electrostrictive component 110, the side surface of the deformable component 120 facing away from the light-emitting unit 101 extends into the first cover 311, and the raised arc surface of this side surface can fit together with the inner arc surface of the first cover 311, so that the curvature of the raised arc surface is consistent each time the deformable component 120 is in the first preset shape. In addition, when there are two or more deformable components 120, the raised amplitude of each deformable component 120 can be ensured to be consistent, thereby ensuring the anti-peek effect.

[0046] In practice, in some embodiments, the electrostrictive element 110 includes multiple elements, each of which is spaced apart and parallel to one another. The light-emitting unit 101 is disposed within any two adjacent electrostrictive elements 110, and the multiple light-emitting units 101 are spaced apart along the extension direction of the electrostrictive elements 110. When the deformable element 120 is in the first preset shape, the convex arc surface of the deformable element 120 is located between two adjacent electrostrictive elements 110. Furthermore, the first cover 311 also includes multiple elements, each of which is located between two adjacent electrostrictive elements 110 and faces the light-emitting unit 101, thereby enhancing the display effect.

[0047] Reference Figure 1 and Figure 2 In some embodiments, the electrostrictive component 110 is disposed on a side of the light-emitting layer 100 facing away from the substrate 130. At least two electrostrictive components 110 are provided, and the deformable component 120 is disposed between two adjacent electrostrictive components 110. The two adjacent electrostrictive components 110 are configured to press the deformable component 120 toward each other, or to move relatively away from each other and release the deformable component 120.

[0048] Specifically, the electrostrictive elements 110 and the deformable elements 120 are staggered along the end surface of the light-emitting layer 100 facing away from the substrate 130, with the deformable element 120 positioned between adjacent electrostrictive elements 110. The electrostrictive elements 110 can expand and contract along the extension direction of the light-emitting layer 100. To prevent peeping, the electrostrictive elements 110 are controlled to press the deformable elements 120 toward each other, causing both sides of the deformable element 120 to be compressed simultaneously. With one side of the deformable element 120 in contact with the light-emitting layer 100, the side of the deformable element 120 facing away from the light-emitting layer 100 bulges, forming a convex lens structure. To increase the viewing angle, the electrostrictive elements 110 are controlled to move away from the deformable element 120, releasing the deformable element 120 and restoring it to a flat position, ensuring a reliable structure. To ensure balanced force distribution on both sides of the deformable element 120, the electrostrictive elements 110 are configured to expand and contract parallel to the extension direction of the end surface of the light-emitting layer 100.

[0049] Furthermore, in this embodiment, the electrostrictive component 110 includes a first electrode 111, a second electrode 112, and an electroexpandable element 113. The electroexpandable element 113 is disposed on the light-emitting layer 100. The first electrode 111 and the second electrode 112 are respectively disposed on two opposing side walls of the electroexpandable element 113. One of the first electrode 111 and the second electrode 112 faces the deformable component 120. The electroexpandable element 113 is configured to expand along the direction of the electric field formed by the first electrode 111 and the second electrode 112 when power is applied. Specifically, the first electrode 111 and the second electrode 112 are respectively disposed on opposite side walls of the electroexpandable element 113. When the first and second electrodes 111, 112 are energized, the electroexpandable element 113 expands along the direction of the electric field formed by the first and second electrodes 111, 112, and compresses the deformable component 120. When the first and second electrodes 111, 112 are de-energized, the electroexpandable structure shrinks and recovers, and the deformable component 120 returns to its flattened state. By controlling the power supply to or from the electrostrictive element 110, the display panel can be switched between an anti-peeping mode and an open mode quickly and conveniently.

[0050] Combine Figure 2 In this embodiment, the deformable component 120 includes a peripheral edge 121 and an elastic adjustment wall 122. The peripheral edge 121 connects to the side of the adjustment wall 122. The light-emitting unit 101 faces the adjustment wall 122. The filling liquid 123 is filled in the filling cavity enclosed by the peripheral edge 121 and the adjustment wall 122. The side of the peripheral edge 121 facing away from the adjustment wall 122 is attached to the light-emitting layer 100. When the electrostrictive component 110 compresses the deformable component 120, the electrostrictive component 110 presses against the peripheral edge 121. The adjustment wall 122 has an arc shape that bulges away from the light-emitting unit 101. When the electrostrictive component 110 releases the deformable component 120, the adjustment wall 122 extends in a flat surface. Specifically, the electrostrictive component 110 increases the contact area between the electrostrictive component 110 and the deformable component 120 by squeezing the surrounding edge 121 or canceling the squeezing of the surrounding edge 121, thereby improving the force uniformity of the deformable component 120 and improving the deformation stability of the adjustment wall 122, thereby achieving the driving of the electrostrictive component 110.

[0051] In practice, the surrounding edge 121 and the adjustment wall 122 form the aforementioned elastic wrapping member 124. When the deformable component 120 is in the second preset shape, the side of the deformable component 120 facing away from the light-emitting unit 101, that is, the adjustment wall 122, can be a convex arc surface. When the surrounding edge 121 is squeezed by the electrostrictive component 110, the adjustment wall 122 can smoothly and naturally bulge away from the light-emitting unit 101 to form a convex lens.

[0052] In this embodiment, the electrostrictive component 110 and the surrounding edge 121 are bonded together. When the electrostrictive component 110 expands or contracts, the surrounding edge 121 can slide relative to the light-emitting layer 100. Alternatively, the bottom edge of the surrounding edge 121 can be fixed to the light-emitting layer 100. Under the pressure of the electrostrictive component 110, the surrounding edge 121 tilts away from the pressure and, together with the adjustment wall 122, bulges to form a convex lens. Furthermore, the elastic wrapping member 124 is a transparent plate-like material with a high elastic recovery rate, such as acrylic.

[0053] In addition, the deformable component 120 may include an elastic adjustment wall 122. The electrostrictive component 110 includes a first electrode 111, a second electrode 112, and an electroexpansion member 113. The deformable component 120 is disposed between two adjacent electrostrictive components 110. The electroexpansion member 113 is disposed in contact with the light-emitting layer 100. The first electrode 111 and the second electrode 112 are respectively disposed on two opposite side walls of the electroexpansion member 113. One of the first electrode 111 and the second electrode 112 faces the deformable component 120. One side of the adjustment wall 122 is fixed to one side of the electrostrictive member 113. The other side of the adjustable wall 122 is fixed to the first electrode 111 of the electrostrictive component 110, and the other side of the adjustable wall 122 is fixed to the second electrode 112 of the electrostrictive component 110 on the other side, so that the inner wall of the adjustable wall 122, the first electrode 111, and the second electrode 112 form a filling cavity. The outer periphery of the privacy protection device is surrounded by support columns, and the filling cavity is filled with a filling liquid 123. When the electrostrictive component 110 expands and contracts, it pulls the adjustable wall 122 to move, causing the adjustable wall 122 to switch between a curved shape and a flat shape, thereby switching the deformable component 120 between a privacy protection state and an open state. In some other embodiments, the adjustment wall 122 may also be an elastically compressed arc-shaped structure and be clamped between the first electrode 111 of one electrostrictive component 110 and the second electrode 112 of the other electrostrictive component 110, wherein the adjustment wall 122 protrudes in a direction away from the light-emitting unit 101 and has a tendency to flatten. When the electrostrictive components 110 contract, the squeezing force between the two electrostrictive components 110 on both ends of the adjustment wall 122 is reduced, causing the adjustment wall 122 to flatten toward a planar structure. When the electrostrictive components expand, the two ends of the adjustment wall 122 are squeezed by the two electrostrictive components 110 and further protrude in a direction away from the light-emitting unit 101.

[0054] And, refer to Figure 5 and Figure 6The electrostrictive element 110 extends in a strip shape, with multiple elements 110 spaced side by side. The light-emitting unit 101 is located between two adjacent electrostrictive elements 110, with multiple light-emitting units 101 spaced apart parallel to the extension direction of the electrostrictive elements 110. The deformable element 120 is located between two adjacent electrostrictive elements 110. Furthermore, support columns are provided around the perimeter of the privacy protection device, with both ends of the strip-shaped electrostrictive element 110 and the ends of the deformable element 120 abutting against the inner walls of the support columns. The parallel arrangement of the multiple electrostrictive elements 110 enhances light output and improves the user experience.

[0055] Reference Figure 3 and Figure 4 The anti-peeping device also includes at least one first cover 311, which is made of a light-transmitting material. The first cover 311 is located on the side of the deformable component 120 facing away from the light-emitting unit 101. The first cover 311 is arc-shaped and its opening faces the light-emitting unit 101. When the deformable component 120 is in the first preset shape, the surface of the deformable component 120 facing away from the light-emitting unit 101 is in contact with the inner wall of the first cover 311.

[0056] Specifically, when the deformable component 120 is in the first preset shape, the deformable component 120 is filled into the first cover body 311 and fits against the inner wall of the first cover body 311. The first cover body 311 supports and regularizes the shape of the deformable component 120, thereby improving the shape maintenance stability of the deformable component 120 and further improving the anti-peeping effect in the anti-peeping mode.

[0057] In some other embodiments, at least two electrostrictive components 110 are provided at intervals, and the first cover 311 corresponds to the position between the two adjacent electrostrictive components 110. The electrostrictive component 110 is located between the deformable component 120 and the base substrate 130. The electrostrictive component 110 is used to squeeze the deformable component 120 in a direction perpendicular to the base substrate 130. Figure 4 As shown, when the electrostrictive component 110 presses the deformable component 120 in a direction perpendicular to the base substrate 130, the deformable component 120 can be deformed to fill the first cover 311, as shown in FIG. Figure 3 As shown, when the electrostrictive component 110 releases its pressure on the deformable component 120 , the deformable component 120 exits the first cover 311 .

[0058] In this embodiment, the deformable component 120 is attached to the light-emitting layer 100. After being squeezed by the electrostrictive component 110, the deformable component 120 squeezes into the first cover 311 to maintain its volume stability, forming the deformable component 120 into a convex lens shape, changing the angle of light emitted by the light-emitting unit 101 and achieving a privacy protection effect. It should be noted that in the open mode, the direction of expansion and contraction of the electrostrictive component 110 must be directly opposite the deformable component 120 to ensure that the electrostrictive component 110 can squeeze the deformable component 120.

[0059] Furthermore, the deformable component 120 includes a soft film 320 and a filling liquid 123 filled within the soft film 320. The soft film 320 is attached to the light-emitting layer 100, and the multiple electrostrictive elements 110 can be squeezed onto the soft film 320 at intervals. Specifically, when the soft film 320 is compressed, the filling liquid 123 within it flows and squeezes into the first cover 311, forming multiple protrusions on the soft film 320 corresponding to the light-emitting units 101. When the compression is released, the filling liquid 123 flows back and expands the soft film 320, causing it to return to a flat state, thereby reliably switching the deformable component 120 between the anti-peeping state and the open state.

[0060] In addition, the electrostrictive component 110 may be located on the side of the deformable component 120 facing away from the base substrate 130, and can also squeeze the deformable component 120 in a direction perpendicular to the base substrate 130. Alternatively, the electrostrictive component 110 may be located on both sides of the deformable component 120 facing away from the base substrate 130, and can also achieve a squeezing effect on the deformable component 120.

[0061] Furthermore, the anti-peeping device also includes a second cover 312, which is made of a light-transmitting material and is disposed on the light-emitting layer 100. The second cover 312 encloses a rectangular cavity, and the deformable component 120 is filled in the second cover 312. An avoidance hole 313 is provided on the side wall of the second cover 312 facing the light-emitting layer 100. The end of the electrostrictive component 110 facing the deformable component 120 is directly opposite the avoidance hole 313. The first cover 311 is disposed on the side of the second cover 312 facing away from the light-emitting layer 100 and is connected to the first cover 311.

[0062] Specifically, the first cover 311 is disposed on a side of the second cover 312 facing away from the light-emitting unit 101, and the first cover 311 and the second cover 312 are interconnected. When the display panel is in an open mode, the deformable component 120 is filled in the second cover 312 and has a planar structure, which is used to emit light emitted by the light-emitting unit 101. When the display panel is in an anti-peeping mode, the electrostrictive component 110 expands and extends into the second cover 312 to squeeze the deformable component 120, reducing the filling space of the deformable component 120 in the second cover 312. This allows the deformable component 120 to squeeze into the first cover 311 to form a convex lens structure, which is used to converge the light emitted by the light-emitting unit 101 into parallel light, thereby achieving an anti-peeping effect. The second cover 312 can restrict the shape of the deformable component 120, making it easier for the deformable component 120 to squeeze into the first cover 311 under the pressure of the electrostrictive component 110.

[0063] In this embodiment, the deformable component 120 includes an elastic wrapping member 124 and a filling liquid 123 filled in the cavity surrounded by the elastic wrapping member 124. When the display panel is in open mode, the deformable component 120 is flatly filled in the second cover body 312. When the display panel is in anti-peep mode, after the deformable component 120 is squeezed by the electrostrictive component 110, part of the filling liquid 123 in the elastic wrapping member 124 is squeezed into the first cover body 311. The elastic wrapping member 124 can be equivalent to the above-mentioned soft film 320. The soft film 320 has resilience, which makes it convenient for the soft film 320 to restore to flatness and fill the second cover body 312.

[0064] Furthermore, the deformable component 120 is laid on the light-emitting layer 100, the electrostrictive component 110 extends in a strip shape, and multiple electrostrictive components 110 are arranged side by side at intervals. The light-emitting unit 101 is located between two adjacent electrostrictive components 110, and multiple light-emitting units 101 are arranged at intervals along the extension direction parallel to the electrostrictive component 110. Specifically, the anti-peeping direction is perpendicular to the extension direction of the electrostrictive component 110. Figure 5 If privacy protection is required in the left and right directions, multiple electrostrictive components 110 can be arranged at intervals in the left and right directions, and the electrostrictive components 110 extend in the front-to-back direction, and the first cover body 311 extends in the front-to-back direction. After the deformable component 120 is squeezed into the first cover body 311, the strip-shaped convex lens can converge the light diverging in the left and right directions to achieve the left and right privacy protection effect. Figure 6 If privacy protection is required in the front-to-back direction, multiple electrostrictive components 110 can be arranged at intervals in the front-to-back direction, and the electrostrictive components 110 extend in the left-to-right direction, and the first cover body 311 extends in the left-to-right direction. After the deformable component 120 is squeezed into the first cover body 311, the strip-shaped convex lens can converge the light diverging in the front-to-back direction, thereby achieving the effect of privacy protection in the front-to-back direction.

[0065] Reference Figure 7 Furthermore, the deformable components 120 are laid on the light-emitting layer 100. The electrostrictive components 110 extend in strips, and multiple electrostrictive components 110 are arranged in a crisscross pattern to form a grid. The first covers 311 are aligned one-to-one with the grid formed by the multiple electrostrictive components 110, and all first covers 311 face at least one light-emitting unit 101. Specifically, the multiple electrostrictive components 110 extending forward and backward are spaced apart in the left-right direction, and the multiple electrostrictive components 110 extending left-right are spaced apart in the front-to-back direction, forming a crisscross pattern. Each first cover 311 is positioned at a corresponding position in each grid. When the electrostrictive components 110 expand and squeeze, the deformable components 120 are squeezed into the multiple first covers 311, achieving privacy protection in both the front-to-back and left-to-right directions, improving privacy protection, and protecting user privacy.

[0066] In this embodiment, the electrostrictive component 110 includes a first electrode 111, a second electrode 112, and an electroexpandable element 113. The first electrode 111 and the second electrode 112 are respectively disposed on two opposing side walls of the electroexpandable element 113. The end surface of the first electrode 111 facing away from the electroexpandable element 113 is disposed on the base substrate 130, while the second electrode 112 faces the deformable component 120. The electroexpandable element 113 is configured to expand along the direction of the electric field formed by the first and second electrodes 111, 112 when current is applied. By disposing the first electrode 111 on the side of the electroexpandable element 113 facing the deformable component 120 and the second electrode 112 on the side of the electroexpandable element 113 facing the base substrate 130, the electroexpandable element 113 can expand or contract in a direction perpendicular to the base substrate 130, thereby squeezing or releasing the deformable component 120. In practice, the first electrode 111 can be a positive electrode or a negative electrode, and the second electrode 112 can be a negative electrode or a positive electrode accordingly. This embodiment does not limit the polarity of the first electrode 111 and the second electrode 112.

[0067] Reference Figure 8 The present application also provides a display device 810, comprising the display panel 820 and a control system 830. The control system 830 is electrically connected to the electrostrictive component 110. The control system 830 is configured to: obtain an anti-peeping mode signal to control the electrostrictive component 110 to be powered on or off according to the obtained anti-peeping mode signal, so that the electrostrictive component 110 configures the deformable component 120 into a first preset shape; and obtain an open mode signal to control the electrostrictive component 110 to be powered on or off according to the obtained open mode signal, so that the electrostrictive component 110 stops configuring the deformable component 120 into the first preset shape.

[0068] Specifically, the user can output an anti-peeping mode signal or an open mode signal to the control system 830, causing it to power on or off the electrostrictive component 110, thereby changing the shape of the deformable component 120. In this embodiment, the electrostrictive component 110 includes an electroexpandable element 113. After receiving the anti-peeping mode signal, the control system 830 applies power to the first electrode 111 and the second electrode 112 to generate a voltage. The electroexpandable element 113 is driven to expand by the electric field of the first and second electrodes 111, 112. After power is removed, the electroexpandable element 113 contracts and recovers, facilitating user adjustment. Furthermore, the display device 810 may be an LCD, an OLED, or a mini-LED.

[0069] Reference Figure 9 The present application also provides a control method for a display device 810, which is applied to the display device 810 described above and includes the following steps: S1. Acquiring an anti-peeping mode signal to control the electrostrictive component 110 to be powered on or off according to the acquired anti-peeping mode signal, so that the electrostrictive component 110 configures the deformable component 120 into a first preset shape; S2. Acquiring an open mode signal to control the electrostrictive component 110 to be powered on or off according to the acquired open mode signal, so that the electrostrictive component 110 stops configuring the deformable component 120 into the first preset shape.

[0070] Specifically, when the user is in an open environment with a need for confidentiality, the controller receives an anti-peeping mode signal to control the electrostrictive component 110 to be powered on or off, so that the electrostrictive component 110 can configure the deformable component 120 into a first preset shape, and the deformable component 120 is in an anti-peeping state. When the user is in an environment with a need for sharing, the controller receives an open mode signal to control the electrostrictive component 110 to be powered on or off, so that the electrostrictive component 110 stops configuring the deformable component 120 into the first preset shape, and the deformable component 120 is in an open state. In the present application, the electrostrictive component 110 is powered on or off according to the anti-peeping mode signal and the open mode signal, respectively, to switch the deformable component 120 between the anti-peeping state and the open state, thereby meeting the user's viewing angle requirements for the display in different application scenarios and improving the user experience.

[0071] Illustratively, the control method of the display device 810 may further include the following steps: S1. Obtaining an anti-peeping mode signal, and controlling the electrostrictive component 110 to be energized based on the obtained anti-peeping mode signal, so that the multiple electrostrictive components 110 arranged at intervals press the deformable component 120 in a direction perpendicular to the base substrate 130, thereby forming multiple raised arc surfaces on the deformable component 120; S2. Obtaining an open mode signal, and controlling the electrostrictive component 110 to be de-energized based on the obtained open mode signal, so that the electrostrictive component 110 releases the deformable component 120, and the deformable component 120 returns to a flat surface. Alternatively, the method may include the following steps: S1, obtaining an anti-peeping mode signal, controlling the electrostrictive component 110 to be energized according to the obtained anti-peeping mode signal, wherein the deformable component 120 is embedded in two adjacent electrostrictive components 110, and the multiple electrostrictive components 110 arranged at intervals press the corresponding deformable components 120 in a direction horizontal to the base substrate 130, so that convex arc surfaces are formed on the multiple deformable components 120; S2, obtaining an open mode signal, controlling the electrostrictive component 110 to be de-energized according to the obtained open mode signal, so that the electrostrictive component 110 releases the deformable component 120, and the deformable component 120 returns to a flat surface.

[0072] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A display panel, characterized in that: include: substrate; A light-emitting layer is provided on one side of the base substrate and includes at least one light-emitting unit; A privacy protection device comprising at least one deformable component and at least one electrostrictive component, wherein the deformable component is made of a light-transmitting material and is disposed on a side of the light-emitting unit facing away from the substrate. The electrostrictive component is capable of stretching and deforming, and is configured to abut against the deformable component through stretching and deforming to form the deformable component into a first preset shape. When the deformable component is in the first preset shape, a surface of the deformable component facing away from the light-emitting unit is a convex arc surface. The privacy protection device further includes at least one first cover, the first cover being made of a light-transmitting material and being located on a side of the deformable component facing away from the light-emitting unit. The first cover is arc-shaped and its opening faces the light-emitting unit. When the deformable component is in the first preset shape, a surface of the deformable component facing away from the light-emitting unit is in contact with an inner wall of the first cover. At least two electrostrictive components are provided at intervals, the first cover corresponds to a position between two adjacent electrostrictive components, the electrostrictive component is located between the deformable component and the base substrate, the electrostrictive component is configured to compress the deformable component in a direction perpendicular to the base substrate so as to deform the deformable component so as to fill the first cover, and when the electrostrictive component releases the deformable component, the deformable component exits the first cover; The anti-peeping device also includes a second cover body, which is made of a light-transmitting material and is arranged on the light-emitting layer. The second cover body forms a rectangular cavity, and the deformable component is filled on the second cover body. An avoidance through-hole is provided on the side wall of the second cover body facing the light-emitting layer, and one end of the electrostrictive component facing the deformable component is opposite to the avoidance through-hole. The first cover body is arranged on the side of the second cover body facing away from the light-emitting layer and is connected to the first cover body.

2. The display panel according to claim 1, wherein: The electrostrictive component is further configured to construct the deformable component into a second preset shape, wherein when the deformable component is in the second preset shape, a surface of the deformable component on a side facing away from the light-emitting unit is flat.

3. The display panel according to claim 1 or 2, wherein: The deformable component includes an elastic wrapping member and a filling liquid filled in a cavity surrounded by the elastic wrapping member. The elastic wrapping member is arranged on the side of the light-emitting unit facing away from the substrate. The side wall of the elastic wrapping member facing away from the light-emitting unit is an adjustment wall. The electrostrictive component is configured to be able to squeeze or release the elastic wrapping member through telescopic deformation. When the elastic wrapping member is deformed under the squeezing of the electrostrictive component, the adjustment wall bulges away from the light-emitting unit to form an arc surface. When the electrostrictive component releases the elastic wrapping member, the adjustment wall returns to a flattened state.

4. The display panel according to claim 1 or 2, wherein: The electrostrictive component is disposed on a side of the light-emitting layer facing away from the base substrate. At least two electrostrictive components are provided. The deformable component is disposed between two adjacent electrostrictive components. The two adjacent electrostrictive components are configured to press the deformable components toward each other or to move relatively away from each other and release the deformable components.

5. The display panel according to claim 4, wherein: The electrostrictive component comprises a first electrode, a second electrode, and an electroexpandable element, wherein the electroexpandable element is disposed on the light-emitting layer, the first electrode and the second electrode are respectively disposed on two opposite side walls of the electroexpandable element, one of the first electrode and the second electrode faces the deformable component, and the electroexpandable element is configured to expand along the direction of the electric field formed by the first electrode and the second electrode when energized; and / or The electrostrictive component extends in a strip shape, a plurality of the electrostrictive components are arranged side by side and spaced apart, the light-emitting unit is located between two adjacent electrostrictive components, a plurality of the light-emitting units are spaced apart along a direction parallel to the extension of the electrostrictive component, and the deformable component is located between two adjacent electrostrictive components; and / or The deformable component includes a surrounding edge and an elastic adjustment wall. The surrounding edge is connected to the side of the adjustment wall. The side of the surrounding edge facing away from the adjustment wall is in contact with the light-emitting layer. A filling liquid is filled in the cavity defined between the surrounding edge and the adjustment wall. When the electrostrictive component compresses the deformable component, the electrostrictive component presses against the surrounding edge. When the electrostrictive component releases the deformable component, the adjustment wall extends in a planar manner.

6. The display panel according to claim 1, wherein: The deformable component includes a soft film and a filling liquid filled in the soft film, the soft film is attached to the light-emitting layer, and the plurality of electrostrictive components can be squeezed onto the soft film at intervals; and / or The deformable component is laid on the light-emitting layer, the electrostrictive component extends in a strip shape, a plurality of the electrostrictive components are arranged side by side and spaced apart, the light-emitting unit is located between two adjacent electrostrictive components, and a plurality of the light-emitting units are arranged spaced apart along an extension direction parallel to the electrostrictive component; and / or The electrostrictive components extend in a strip shape, and a plurality of the electrostrictive components are arranged in a crisscross pattern to form a grid, the first covers are aligned one-to-one with the grid formed by the plurality of the electrostrictive components, and all the first covers are aligned with at least one of the light-emitting units; and / or The electrostrictive component includes a first electrode, a second electrode, and an electroexpandable element. The first electrode and the second electrode are respectively arranged on two opposite side walls of the electroexpandable element. The end face of the first electrode facing away from the electroexpandable element is arranged on the base substrate, and the second electrode faces the deformable element. The electroexpandable element is configured to expand along the direction of the electric field formed by the first and second electrodes when power is applied.

7. A display device, characterized in that The display panel according to any one of claims 1 to 6, further comprising: A control system electrically connected to the electrostrictive component, the control system being configured to: acquiring an anti-peeping mode signal, and controlling the electrostrictive component to be powered on or off according to the acquired anti-peeping mode signal, so that the electrostrictive component constructs the deformable component into the first preset shape; An open mode signal is acquired to control the electrostrictive component to be powered off or powered on according to the acquired open mode signal, so that the electrostrictive component stops constructing the deformable component into the first preset shape.

8. A method for controlling a display device, characterized in that: The method is applied to the display device as claimed in claim 7, comprising the following steps: acquiring an anti-peeping mode signal, and controlling the electrostrictive component to be powered on or off according to the acquired anti-peeping mode signal, so that the electrostrictive component constructs the deformable component into the first preset shape; An open mode signal is acquired to control the electrostrictive component to be powered off or powered on according to the acquired open mode signal, so that the electrostrictive component stops constructing the deformable component into the first preset shape.

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