Display apparatus

Abstract

Provided is a display apparatus, belonging to the technical field of display. The display apparatus (10) comprises a display panel (11) and a light shielding assembly (12). The light shielding assembly (12) comprises a driving unit (121) and a plurality of light shielding plates (122), the driving unit (121) being electrically connected to the light shielding plates (122). The plurality of light shielding plates (122) are arranged in an array on a target surface of the display panel (11), one end of each light shielding plate (122) being connected to the target surface. The light shielding plates (122) are in a flat state or a bent state under the driving of the driving unit (121), and the area of the orthographic projection of the light shielding plates (122) in the flat state on the display panel (11) is greater than the area of the orthographic projection of the light shielding plates (122) in the bent state on the display panel (11). Thus, the light shielding plates (122) in the flat state or the bent state can achieve different light shielding areas, and the display panel (11) can achieve different display states under different light shielding areas, thereby achieving the functions of regulating the light shielding effect and regulating the display state, and further achieving the effect of diversifying the display functions of the display apparatus.

Description

Display device Technical Field

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

[0002] A display device is a device used to display images and text.

[0003] A display device includes a display panel and a control component, wherein the display state of the display panel includes a screen-on state and a screen-off state. In the screen-on state, the control component can control the display panel to realize a display function.

[0004] However, the above-mentioned display device has a single function.

[0005] Summary of the Invention

[0006] An embodiment of the present application provides a display device, comprising:

[0007] a display panel, the display panel comprising a first surface and a second surface opposite to the first surface;

[0008] A shading assembly, wherein the shading assembly includes a driving unit and a plurality of shading plates, the driving unit is electrically connected to the shading plates, the plurality of shading plates are arranged in an array on a target surface of the display panel, and one end of the shading plate is connected to the target surface, the target surface is at least one of the first surface and the second surface, and the shading plate is in a flat state or a curved state when driven by the driving unit, and the area of ​​the orthographic projection of the shading plate in the flat state on the display panel is larger than the area of ​​the orthographic projection of the shading plate in the curved state on the display panel.

[0009] Optionally, the driving unit is configured to provide a voltage of a first potential or a second potential to the light shielding plate, wherein the second potential is higher than the first potential;

[0010] The shading plate is in one of the flat state and the curved state when the voltage provided by the driving unit is the first potential, and is in the other of the flat state and the curved state when the voltage provided by the driving unit is the second potential.

[0011] Optionally, the multiple sunshades are divided into at least one sunshade group, each sunshade group includes at least two sunshades, the driving unit includes at least one driving sub-unit, the at least one sunshade group corresponds to the at least one driving sub-unit respectively, and the sunshades of each sunshade group are electrically connected to the corresponding driving sub-unit.

[0012] Optionally, the plurality of light shielding plates all belong to one light shielding plate group, and the plurality of light shielding plates are connected in parallel and then in series with the driving unit.

[0013] Optionally, the display panel includes at least two display areas, the areas of the shading plates on the at least two display areas are different, and the density of the shading plates on the at least two display areas is negatively correlated with the areas of the shading plates on the at least two display areas.

[0014] Optionally, the at least two display areas correspond to at least two image resolutions, and the display areas are used to display images of corresponding image resolutions;

[0015] The area of ​​the light shielding plate is negatively correlated with the image resolution corresponding to the display area.

[0016] Optionally, the at least two display areas include a first display area and a second display area surrounding the first display area, and an area of ​​the shading plate on the second display area is larger than an area of ​​the shading plate on the first display area.

[0017] Optionally, the shading plate includes a conductive layer, and the shading assembly also includes an electrode structure layer and an insulating layer, the electrode structure layer is located on the side of the display panel close to the conductive layer, and the insulating layer is located between the conductive layer and the electrode structure layer, the orthographic projection of the electrode structure layer on the display panel overlaps with the orthographic projection of the conductive layer on the display panel, and the driving unit is electrically connected to the electrode structure layer and the conductive layer respectively.

[0018] Optionally, the shading plate comprises a first flexible material layer, a conductive layer, and a second flexible material layer, which are sequentially arranged in a direction away from the display panel in the flat state, and the driving unit is electrically connected to the conductive layer;

[0019] The light shielding plate is in the flat state when the voltage provided by the driving unit is the first potential, and the thermal expansion coefficient of the first flexible material layer is greater than the thermal expansion coefficient of the second flexible material layer;

[0020] Alternatively, the light shielding plate is in the bent state when the voltage provided by the driving unit is the first potential, and the thermal expansion coefficient of the first flexible material layer is smaller than the thermal expansion coefficient of the second flexible material layer.

[0021] Optionally, the display panel includes multiple display areas, and when the voltage provided by the driving unit is the first potential, the shading plates on at least two of the display areas include at least one shading plate in the flat state and at least one shading plate in the curved state.

[0022] Optionally, the display panel includes a transparent display panel, and the light shielding plate is located on the first surface and the second surface.

[0023] Optionally, the display panel includes a transparent display panel, and the light shielding plate is located on the first surface or the second surface.

[0024] Optionally, the first surface is a display surface of the display panel, and the light shielding plate is located on the first surface;

[0025] The display device further includes a light shielding layer, and the light shielding layer is located on the second surface.

[0026] Optionally, the light shielding plate includes a first portion close to one end of the light shielding plate and a second portion away from one end of the light shielding plate, and the first portion is fixedly provided on at least one side of the display panel;

[0027] In the bent state, the second portion is bent in a direction away from the display panel, and in the flat state, the angle between the second portion and the display panel is smaller than the angle between the second portion and the display panel in the bent state; or, in the bent state, the second portion is scroll-shaped.

[0028] Optionally, in the bent state, an area of ​​an orthographic projection of the shading plate on the display panel is less than or equal to 0.1 of an area of ​​an orthographic projection of the shading plate on the display panel in the flat state.

[0029] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0030] A display device is provided that includes a display panel and a shading assembly. The shading assembly includes a drive unit and a plurality of shading plates. The drive unit is electrically connected to the shading plates. The plurality of shading plates are arranged in an array on a target surface of the display panel, and one end of the shading plates is connected to the target surface. The shading plates are driven by the drive unit to be in a flat state or a curved state. The orthographic projection area of ​​the shading plates in the flat state on the display panel is larger than the orthographic projection area of ​​the shading plates in the curved state on the display panel. Thus, the shading plates in the flat state and the curved state can achieve different shading areas, and the display panel can achieve different display states under different shading areas, thereby achieving the functions of adjusting the shading effect and the display state, thereby enriching the display functions of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic structural diagram of a display device provided in an embodiment of the present application;

[0033] FIG2 is a schematic diagram of a cross-sectional structure of the display device provided in FIG1 ;

[0034] FIG3 is a schematic structural diagram of a light shielding plate of the display device provided in FIG2 in a bent state;

[0035] FIG4 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0036] FIG5 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0037] FIG6 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0038] FIG7 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0039] FIG8 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0040] FIG9 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0041] FIG10 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0042] FIG11 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0043] FIG12 is a schematic diagram of a cross-sectional structure of the display device provided in FIG11;

[0044] FIG13 is a schematic structural diagram of another display device provided in an embodiment of the present application;

[0045] FIG14 is an enlarged schematic diagram of a portion of the structure of the display device provided in FIG13;

[0046] FIG15 is another enlarged schematic diagram of a portion of the structure of the display device provided in FIG13;

[0047] FIG16 is a schematic structural diagram of another display device provided in an embodiment of the present application.

[0048] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0050] Please refer to Figures 1, 2, and 3. Figure 1 is a schematic diagram of the structure of a display device provided in an embodiment of the present application. Figure 2 is a schematic diagram of a cross-sectional structure of the display device provided in Figure 1 (Figure 2 may be a schematic diagram of the cross-sectional structure of the display device provided in Figure 1 at A1-A1). Figure 3 is a schematic diagram of the structure of a shading plate of the display device provided in Figure 2 in a bent state. The shading plates shown in Figures 1 and 2 are in a flat state, while the shading plate shown in Figure 3 is in a bent state. The display device 10 includes:

[0051] The display panel 11 includes a first surface 111 and a second surface 112 opposite to the first surface 111 .

[0052] The shading assembly 12 includes a drive unit 121 and a plurality of shading plates 122. The drive unit 121 is electrically connected to the shading plates 122. The plurality of shading plates 122 are arranged in an array on the target surface of the display panel 11, and one end of the shading plates 122 is connected to the target surface. The target surface is at least one of the first surface 111 and the second surface 112. The shading plates 122 are driven by the drive unit 121 to be in a flat state or a curved state. The area of ​​the orthographic projection of the shading plates 122 in the flat state on the display panel 11 is larger than the area of ​​the orthographic projection of the shading plates 122 in the curved state on the display panel 11. In the flat state, the shading plates 122 cover the display panel 11, and the extension direction of the shading plates 122 is approximately parallel to the display panel 11.

[0053] It should be noted that the plurality of light shielding plates 122 are arranged in an array on the target surface of the display panel 11 , and the target surface is at least one of the first surface 111 and the second surface 112 , including three situations:

[0054] Referring to FIG. 2 and FIG. 3 , a plurality of light shielding plates 122 are located on the first surface 111 of the display panel 11 .

[0055] Please refer to FIG. 4 , which is a schematic structural diagram of another display device provided in an embodiment of the present application. A plurality of light shielding plates 122 are located on the second surface 112 of the display panel 11 .

[0056] Please refer to FIG. 5 , which is a schematic structural diagram of another display device provided in an embodiment of the present application. A plurality of light shielding plates 122 are located on the first surface 111 and the second surface 112 of the display panel 11 .

[0057] In summary, the embodiments of the present application provide a display device including a display panel and a shading assembly. The shading assembly includes a drive unit and a plurality of shading plates. The drive unit is electrically connected to the shading plates. The plurality of shading plates are arranged in an array on a target surface of the display panel, and one end of the shading plates is connected to the target surface. The shading plates are driven by the drive unit to be in a flat state or a curved state. The area of ​​the orthographic projection of the shading plates in the flat state on the display panel is larger than the area of ​​the orthographic projection of the shading plates in the curved state on the display panel. In this way, the shading plates in the flat state and the curved state can achieve different shading areas, and the display panel can achieve different display states under different shading areas. Thus, the display device can achieve the functions of adjusting the shading effect and adjusting the display state, thereby solving the problem of the single function of the display device in the related art.

[0058] Referring to Figures 1 and 2, the display panel 11 can be used to display images or text, so that the display device can realize the display function. The display panel 11 provided in the embodiment of the present application includes various types. For example, the display panel 11 provided in the embodiment of the present application can be a transparent display panel or a non-transparent display panel. The display panel 11 can also be a single-sided display panel or a double-sided display panel. The implementation examples of the present application are not limited to this. Among them, the double-sided display panel can include various situations. The double-sided display panel can include two single-sided display panels arranged back to back, or the double-sided display panel can be a transparent display panel that can display on both sides.

[0059] The driving unit 121 can be used to drive the light shielding plate 122 to be in a flat state or a curved state. The driving unit 121 can include multiple driving modes. Optionally, the driving unit 121 is used to provide a voltage of a first potential or a second potential to the light shielding plate 122, where the second potential is higher than the first potential. When the voltage provided by the driving unit 121 is the first potential, the light shielding plate 122 is in one of the flat state and the curved state, and when the voltage provided by the driving unit 121 is the second potential, it is in the other of the flat state and the curved state. There are two corresponding situations between the voltage provided by the driving unit 121 and the state of the light shielding plate 122:

[0060] (1) The light shielding plate 122 is in a curved state when the voltage provided by the driving unit 121 is a first potential, and is in a flat state when the voltage provided by the driving unit 121 is a second potential.

[0061] (2) The light shielding plate 122 is in a flat state when the voltage provided by the driving unit 121 is a first potential, and is in a curved state when the voltage provided by the driving unit 121 is a second potential.

[0062] The first potential may be 0 volts (V), and the initial state of the light shielding plate 122 may include one of a flat state and a curved state, which is beneficial for energy conservation. The initial state may be a state where the applied voltage to the light shielding plate 122 is 0 V. The second potential may be set based on process parameters of the light shielding plate 122. For example, the process parameters may include the material, thickness, and shape of the light shielding plate. For example, the second potential may be proportional to the thickness of the light shielding plate 122. The thicker the light shielding plate 122, the greater the external force required to switch the light shielding plate 122 between the flat state and the curved state, and the higher the second potential.

[0063] Optionally, referring to Figures 2 and 3, the light shielding plate 122 may include a first portion E1 proximal to one end of the light shielding plate 122 and a second portion E2 distal to the light shielding plate 122. The first portion E1 is fixedly mounted on at least one side of the display panel 11, and the second portion E2 can be bent or stretched under the drive of a drive unit, thereby enabling the light shielding plate 122 to achieve a curved state or a flat state. Exemplarily, the first portion E1 may be fixedly mounted on at least one side of the display panel 11 via a connecting structure, the connecting structure being configured to connect the first portion E1 to a target surface of the display panel 11. Alternatively, the first portion E1 may be fixedly mounted on at least one side of the display panel 11 via an adhesive, which is not a limitation in this embodiment of the present application.

[0064] The shading plate 122 can be used to block light emitted from the display panel 11 and ambient light. When the shading plate 122 is flat, the angle θ1 between the second portion E2 and the display panel 11 can be 0 degrees. The shading plate 122 can cover the first surface 111 of the display panel 11. In this way, light emitted from the first surface 111 of the display panel 11 is blocked by the shading plate 122, and external light is prevented from shining on the first surface 111 of the display device, allowing the display device to be in a normally dark state. When the shading plate 122 is bent, the second portion E2 bends away from the display panel 11. The angle θ1 between the second portion E2 and the display panel 11 in the flat state is smaller than the angle θ2 between the second portion E2 and the display panel 11 in the bent state. The second portion E2 can include a bendable portion proximal to the first portion E1 and an extended portion distal from the first portion E1. The angle θ2 can be the angle between the extended portion and the display panel 11. The shading area of ​​the curved shading plate 122 is smaller than that of the flat shading plate 122. This allows light emitted from the first surface 111 of the display panel 11 to be emitted outside the display device, while also allowing ambient light to illuminate the display device, thereby maintaining the display device in a display state. Furthermore, the angle θ2 shown in FIG3 is close to 90 degrees, so the shading area of ​​the display panel 11 blocked by the second portion E2 in the curved state is smaller. This prevents the shading plate 122 from affecting the display of the display panel 11 when in the curved state, thereby improving the display quality of the display device.

[0065] The second portion may also have other shapes. See Figure 6, which is a schematic diagram of the structure of another display device provided by an embodiment of the present application. In the bent state, the second portion E2 may be in the shape of a scroll. This reduces the space occupied by the second portion E2 in a direction perpendicular to the display panel 11, thereby reducing the thickness of the display device and achieving a thinner and lighter design.

[0066] Optionally, the area of ​​the orthographic projection of the light shielding plate 122 on the display panel 11 in the curved state is less than or equal to 0.1 of the area of ​​the orthographic projection of the light shielding plate 122 on the display panel 11 in the flat state. This ensures that the area of ​​the display panel 11 blocked by the light shielding plate 122 in the curved state is not too large, thereby preventing excessive blocking of light emitted by the display panel 11 in the curved state, thereby improving the display effect. If the display panel 11 is a transparent display panel, this can also prevent excessive blocking of ambient light in the curved state, thereby improving the transparency effect.

[0067] In addition, the light shielding plate 122 can include various shapes, such as rectangular, square, or fan-shaped, and the embodiments of the present application are not limited thereto. For example, the length and width of the rectangular light shielding plate 122 shown in FIG1 can range from 1 micron to 1000 microns, and the thickness of the light shielding plate 122 can range from 0.5 microns to 10 microns.

[0068] Optionally, the shading component may include multiple structures to achieve the function of switching between a flat state and a curved state. Please refer to Figure 7, which is a schematic structural diagram of another display device provided in an embodiment of the present application. The shading plate 122 includes a conductive layer 1221, and the shading component 12 also includes an electrode structure layer 123 and an insulating layer 124. The electrode structure layer 123 is located on the side of the display panel 11 close to the conductive layer 1221, and the insulating layer 124 is located between the conductive layer 1221 and the electrode structure layer 123. The orthographic projection of the electrode structure layer 123 on the display panel 11 overlaps with the orthographic projection of the conductive layer 1221 on the display panel 11. The driving unit 121 is electrically connected to the electrode structure layer 123 and the conductive layer 1221 respectively.

[0069] Among them, the material of the conductive layer 1221 may include a flexible conductive material, so that the shading plate 122 can achieve a flat state and a curved state under the drive of the driving unit 121. Exemplarily, the conductive layer 1221 may include a metal material, and thinner metals are flexible, such as aluminum or copper. The conductive layer 1221 may also include a memory metal material or a non-metallic conductive material, and the embodiments of the present application are not limited to this.

[0070] Taking the case where the light shielding plate 122 is in a curved state when the driving unit 121 provides a voltage of a first potential as an example, when the driving unit 121 provides the voltage of the first potential, the light shielding plate 122 is in a curved state. The curved conductive layer 1221 has a large internal stress, which can also facilitate the light shielding plate 122 to return from a flat state to a curved state. The voltage of the first potential can be 0V, and the initial state of the light shielding plate 122 can be a curved state. The manufacturing process of the light shielding plate 122 in the initially curved state can include: providing a sacrificial layer on the target surface of the display panel 11; then manufacturing the light shielding plate 122 on the sacrificial layer, wherein the shape of the sacrificial layer can complement the shape of the light shielding plate 122 in the curved state; and removing the sacrificial layer after the light shielding plate 122 is manufactured, thereby obtaining the light shielding plate 122 in the curved state.

[0071] When the driving unit 121 provides a voltage of the second potential, since the driving unit 121 is electrically connected to the electrode structure layer 123 and the conductive layer 1221 respectively, there is a potential difference between the electrode structure layer 123 and the conductive layer 1221. In this way, there is an electrostatic force between the electrode structure layer 123 and the conductive layer 1221, and the orthographic projection of the electrode structure layer 123 on the display panel 11 overlaps with the orthographic projection of the conductive layer 1221 on the display panel 11. The electrostatic force can adsorb the curved conductive layer 1221 in the direction close to the display panel 11, so that the shading plate 122 can achieve a flat state.

[0072] The electrode structure layer 123 includes a variety of structures. The electrode structure layer 123 can be a whole layer of mesh electrodes, or the electrode structure layer 123 can include multiple electrode structures, and the multiple electrode structures correspond to multiple shading plates 122 respectively, and the orthographic projection of the electrode structure on the display panel 11 overlaps with the orthographic projection of the corresponding shading plate on the display panel 11. Exemplarily, the material of the electrode structure layer 123 can include a transparent metal or metal oxide, such as indium tin oxide, so that the electrode structure layer 123 can be prevented from blocking the light emitted by the display panel 11, thereby improving the display effect of the display device. When the display panel 11 is a transparent display panel, by making the material of the electrode structure layer 123 include a transparent metal or metal oxide, the light transmittance of the display panel 11 can be increased, thereby improving the transparency of the display device.

[0073] The insulating layer 124 is located between the conductive layer 1221 and the electrode structure layer 123. It provides insulation protection, preventing direct contact between the conductive layer 1221 and the electrode structure layer 123, which could cause a short circuit. Furthermore, the second potential is positively correlated with the thickness of the insulating layer 124. The thicker the insulating layer 124, the greater the distance between the conductive layer 1221 and the electrode structure layer 123, and the greater the electrostatic force required when the light shielding plate 122 switches between the flat and curved states, resulting in a higher second potential.

[0074] Please refer to Figure 8, which is a schematic diagram of the structure of another display device provided in an embodiment of the present application. The electrode structure layer 123 and the conductive layer 1221 can be electrically connected to the positive and negative ports of the drive unit 12 respectively. The electrode structure layer 123 or the conductive layer 1221 can be grounded. For example, the electrode structure layer 123 can be a mesh electrode of the entire layer, and the mesh electrode can be grounded. The conductive layers 1221 of multiple light shielding plates 122 can be connected in parallel and electrically connected to the ports of the drive unit 12. In this way, under the drive of the drive unit 12, the conductive layers 1221 of the multiple light shielding plates 122 are at the same potential, and there is a potential difference between the electrode structure layer 123 and the conductive layer 1221, so that the electrostatic force between the electrode structure layer 123 and the conductive layer 1221 can be used to switch between the curved state and the flat state. In addition, the electrode structure layer 123 can also include multiple electrode structures, and the multiple electrode structures can also be connected in parallel and electrically connected to the ports of the drive unit 12. This embodiment of the present application is not limited to this.

[0075] Optionally, the shading assembly may include another structure to achieve the function of switching between a flat state and a curved state. Please refer to Figure 9, which is a schematic diagram of the structure of another display device provided in an embodiment of the present application. The shading plate 122 includes a first flexible material layer 1222, a conductive layer 1221, and a second flexible material layer 1223, which are sequentially arranged in a flat state in a direction away from the display panel 11. The driving unit 121 is electrically connected to the conductive layer 1221. The conductive layer 1221 can be electrically connected to the positive and negative terminals of the driving unit 121 to form an electrical circuit, so that the driving unit 121 can apply a voltage to the conductive layer 1221 to cause the conductive layer 1221 to heat up.

[0076] When the driving unit 121 provides a voltage of a first potential, the light shielding plate 122 is in a flat state, and the thermal expansion coefficient of the first flexible material layer 1222 is greater than the thermal expansion coefficient of the second flexible material layer 1223. When the driving unit 121 provides a voltage of a second potential, the driving unit 121 is electrically connected to the conductive layer 1221. The voltage provided by the driving unit 121 can cause the conductive layer 1221 to generate heat, which can be transferred to the first flexible material layer 1222 and the second flexible material layer 1223. Because the thermal expansion coefficient of the first flexible material layer 1222 is greater than the thermal expansion coefficient of the second flexible material layer 1223, the deformation of the first flexible material layer 1222 is greater than that of the second flexible material layer 1223. Therefore, the first flexible material layer 1222 and the second flexible material layer 1223 can cause the conductive layer 1221 to bend away from the display panel 11, thereby achieving a bent state for the light shielding plate 122. Alternatively, the light shielding plate 122 is in a bent state when the driving unit 121 provides a voltage of a first potential, and the thermal expansion coefficient of the first flexible material layer is smaller than the thermal expansion coefficient of the second flexible material layer. When the driving unit 121 provides a voltage of a second potential, the driving unit 121 is electrically connected to the conductive layer 1221. The voltage provided by the driving unit 121 can cause the conductive layer 1221 to generate heat, which can be transferred to the first flexible material layer 1222 and the second flexible material layer 1223. Since the thermal expansion coefficient of the first flexible material layer 1222 is smaller than that of the second flexible material layer 1223, the deformation of the second flexible material layer 1223 is greater than that of the first flexible material layer 1222. Therefore, the first and second flexible material layers 1222 and 1223 can cause the conductive layer 1221 to stretch toward the display panel 11, thereby achieving a flat state for the light shielding plate 122.

[0077] For example, the first flexible material layer 1222 may be made of polydimethylsiloxane (PDMS), and the second flexible material layer 1223 may be made of polyimide (PI). Since the thermal expansion coefficient of PDMS is greater than that of PI, when the temperature rises, the first and second flexible material layers 1222 and 1223 may cause the conductive layer 1221 to bend away from the display panel 11, thereby allowing the light shielding plate 122 to achieve a bent state. Furthermore, the first and second flexible material layers 1222 and 1223 may also be made of other materials with significantly different thermal expansion coefficients. The greater the difference in thermal expansion coefficient between the first and second flexible material layers 1222 and 1223, the greater the difference in deformation between the first and second flexible material layers 1222 and 1223, thereby increasing the speed at which the light shielding plate 122 switches between the bent and flat states.

[0078] The display device provided in the embodiment of the present application can include multiple display states. Referring to Figures 3 and 4, the display panel 11 includes a transparent display panel, and multiple light shielding plates 122 are located on the first surface 111 or the second surface 112 of the display panel 11. Transparent display panels include various forms. For example, the transparent display panel can be single-sided, meaning that the display content can only be viewed on one side of the display panel, and the other side is glass; the transparent display panel can also be double-sided, meaning that the display content can be viewed on both sides of the display panel.

[0079] Taking the multiple shading plates 122 shown in FIG3 as an example, which are located on the first surface 111 of the display panel 11, when the transparent display panel is single-sided display and the second surface 112 is the display surface, when the shading plates 122 are in a bent state, the display panel 11 can display normally, and ambient light can also pass through the display panel 11. In this way, the user can observe the display content of the second surface 112 and the scene outside the first surface 111 from the outside of the second surface 112. The outside of the second surface 112 is the side of the second surface 112 away from the first surface 111, and the outside of the first surface 111 is the side of the first surface 111 away from the second surface 112. The display device can then be in a transparent display state, thereby achieving a transparent display visual effect. When the shading plate 122 is in a flat state, the second surface 112 of the display panel 11 can display normally, but the ambient light cannot pass through the display panel 11. In this way, the user can observe the display content of the second surface 112 from the outside of the second surface 112, but cannot observe the scene outside the first surface 111. The display device can be in an opaque display state, and the surrounding environment will not interfere with the image displayed by the display panel 11, so that the image of the display panel 11 can be clearly displayed.

[0080] When the transparent display panel is dual-sided, both the first surface 111 and the second surface 112 are display surfaces. When the shading plate 122 is bent, both sides of the display device are in a transparent display state. When the shading plate 122 is flat, the outer side of the first surface 111 of the display device is in a normally dark state, and the outer side of the second surface 112 of the display device is in an opaque display state.

[0081] For example, the display device can be used for window displays. When the display device receives a user-provided instruction for a transparent display state, the drive unit can provide a voltage of a first potential to cause the shading plate 122 to be in a curved state, allowing the display panel 11 to display normally and allowing ambient light to pass through the display panel 11. In this way, the user outside the window can observe the image displayed on the display panel 11 and the items displayed in the window, thereby improving the display effect. When the display device receives a user-provided instruction for an opaque display state, the drive unit can provide a voltage of a second potential to cause the shading plate 122 to be in a flat state. The shading plate 122 can block ambient light. In this way, the image displayed on the display panel 11 observed by the user outside the window is not disturbed by the surrounding environment, thereby improving the display effect.

[0082] 3 and 4 , the display panel 11 may also include a non-transparent display panel, with both the first surface 111 and the second surface 112 of the display panel 11 being display surfaces, and a plurality of light shielding plates 122 being located on the first surface 111 or the second surface 112 of the display panel 11. Taking the example of the plurality of light shielding plates 122 located on the first surface 111 of the display panel 11 shown in FIG3 , when the light shielding plates 122 are in a curved state, the first surface 111 and the second surface 111 of the display panel 11 can display normally, and the display device can be in a double-sided display state. When the light shielding plates 122 are in a flat state, the second surface 112 of the display panel 11 can display normally, and the display device can be in a single-sided display state.

[0083] Optionally, referring to FIG5 , the display panel 11 includes a transparent display panel, and a plurality of light shielding plates 122 are located on the first surface 111 and the second surface 112 of the display panel 11. When the transparent display panel is single-sided display, taking the first surface 111 as the display surface as an example, when the light shielding plates 122 on the first surface 111 and the light shielding plates 122 on the second surface 112 are both in a bent state, the first surface 111 of the display panel 11 can display normally, and ambient light can also pass through the display panel 11. In this way, a user outside the first surface 111 can observe the display content of the first surface 111 and the scene outside the second surface 112, and the display device can be in a transparent display state. When the shading plate 122 on the first surface 111 is curved and the shading plate 122 on the second surface 112 is flat, the first surface 111 of the display panel 11 can display normally, but ambient light cannot pass through the display panel 11. In this way, a user can observe the display content of the first surface 111 from outside the first surface 111, but cannot observe the scene behind the first surface 111. The display device can be in an opaque display state. When the shading plate 122 on the first surface 111 is flat and the shading plate 122 on the second surface 112 is curved, the user cannot observe the display content of the first surface 111 from outside the first surface 111. The display device can be in a normally dark state for the first surface 111, and the second surface 112 can be in a low-transmittance glass state. When both the shading plates 122 on the first surface 111 and the shading plates 122 on the second surface 112 are flat, the light emitted by the display panel 11 and the ambient light are blocked, and the display device can be in a normally dark state.

[0084] When the transparent display panel is a double-sided display, with both the first surface 111 and the second surface 112 being display surfaces, and the light shielding plates 122 on the first surface 111 and the light shielding plates 122 on the second surface 112 being in a curved state, the first surface 111 and the second surface 112 of the display panel 11 can display normally, and ambient light can also pass through the display panel 11. In this way, a user outside the first surface 111 can observe the display content of the first surface 111 and the scene outside the second surface 112, and a user outside the second surface 112 can observe the display content of the second surface 112 and the scene outside the first surface 111. In this way, the display device can be in a double-sided transparent display state. When the light shielding plates 122 on the first surface 111 are in a curved state and the light shielding plates 122 on the second surface 112 are in a flat state, the display device can be in an opaque display state for the first surface 111 and a normally dark state for the second surface 112. When the light shielding plates 122 on the first surface 111 are flat and the light shielding plates 122 on the second surface 112 are curved, the display device can be in an opaque display state on the second surface 112 and in a normally dark state on the first surface 111. When both the light shielding plates 122 on the first surface 111 and the light shielding plates 122 on the second surface 112 are flat, the light emitted by the display panel 11 and the ambient light are blocked, and the display device can be in a normally dark state.

[0085] Exemplarily, the display device can be used for indoor window display, where the side of the display panel 11 closest to the interior of the room can be the display surface. When the display device receives a user-provided instruction for a transparent display state, the drive unit can provide a voltage of a first potential to cause the shading plate 122 on the first surface 111 and the second surface 112 to be in a curved state. In this way, the user can observe the image displayed on the display panel 11 and the scene outside the window indoors, and the user can observe transparent glass outdoors, thereby achieving a transparent display visual effect. When the display device receives a user-provided instruction for an opaque display state, the drive unit can provide a voltage of a second potential to cause the shading plate 122 on the first surface 111 or the second surface 112 to be in a flat state. The shading plate 122 can block ambient light, so that the image displayed on the display panel 11 observed by the user indoors is not disturbed by the surrounding environment, thereby improving the display effect. The user cannot observe the scene indoors when outdoors, thereby protecting the privacy of the user indoors. When the display device receives an instruction from the user for a normally dark display state, the driving unit can provide a voltage of a second potential to make the shading plate 122 on the first surface 111 and the second surface 112 in a flat state. The shading plate 122 can block the light of the display panel 11 and the ambient light, thereby reducing the indoor brightness to meet user needs, thereby improving the user experience.

[0086] Optionally, please refer to Figure 10, which is a structural schematic diagram of another display device provided in an embodiment of the present application. The first surface 111 is the display surface of the display panel 11, and the shading plate 122 is located on the first surface 111. The display device also includes a shading layer 13, which is located on the second surface 112. Among them, the shading layer 13 can block the second surface 112 of the display panel 11, so as to avoid light leakage from the second surface 112 of the display panel 11. When the shading plate 122 is in a bent state, the first surface 111 of the display panel 11 can be displayed normally. When the shading plate 122 is in a flat state, both the first surface 111 and the second surface 112 of the display panel 11 are blocked, and the display device can be in a normally dark state.

[0087] The display panel 11 may be an organic light emitting diode (OLED) display panel. The display panel 11 may realize a light emitting function through fluorescent materials. When the display device is powered off, the fluorescent materials may still emit light, which may include invisible light, and the instrument may detect the invisible light. Therefore, compared to the off-screen state, shielding the display panel 11 by the shading plate 122 and the shading layer 13 can effectively block various light rays, thereby improving the shading effect. In addition, the materials of the shading plate 122 and the shading layer 13 may include low-reflectivity materials, thereby reducing the reflectivity of the display device to ambient light, thereby improving the effect of the normally dark state of the display device.

[0088] Optionally, the plurality of light shielding plates can be divided into at least one light shielding plate group so that the driving unit can drive the light shielding plates in groups. Please refer to Figures 11 and 12. Figure 11 is a structural schematic diagram of another display device provided in an embodiment of the present application, and Figure 12 is a schematic diagram of a cross-sectional structure of the display device provided in Figure 11 (Figure 12 may be a schematic diagram of the cross-sectional structure of the display device provided in Figure 11 at A2-A2 when the display device provided in Figure 11 is in a bent state). The plurality of light shielding plates 122 are divided into at least one light shielding plate group B. The light shielding plate group B shown in Figure 11 includes a first light shielding plate group B1 and a second light shielding plate group B2. Each light shielding plate group B includes at least two light shielding plates 122. The driving unit 121 includes at least one driving sub-unit C. The driving sub-unit C shown in Figure 11 includes a first driving sub-unit C1 and a second driving sub-unit C2. At least one light shielding plate group B corresponds to at least one driving sub-unit C, and the light shielding plates 122 of each light shielding plate group B are electrically connected to the corresponding driving sub-unit C. In this way, the first driving sub-unit C1 can be used to drive the light shielding plates 122 in the first light shielding plate group B1, and the second driving sub-unit C2 can be used to drive the light shielding plates 122 in the second light shielding plate group B2.

[0089] Furthermore, the light shielding plates 122 of each light shielding plate group B can be connected in parallel and then in series with the corresponding driver sub-unit C, so that the driver sub-unit C can simultaneously provide a voltage of the same potential to at least two light shielding plates 122 of the corresponding light shielding plate group B, thereby controlling the at least two light shielding plates 122 of the corresponding light shielding plate group B to be in the same state. For example, as shown in FIG12 , the light shielding plates 122 are located on the first surface 111 and the second surface 112 of the display panel 11. The light shielding plate group B1 includes the light shielding plates 122 located on the first surface 111 of the display panel 11. The driver sub-unit C1 can control the light shielding plates 122 of the light shielding plate group B1 to be in a bent state. The light shielding plates 122 located on the second surface 112 of the display panel 11 may belong to another light shielding plate group and can be controlled by the corresponding driver sub-unit to be in a bent state. In addition, different shading plate groups B may be located on different areas of the display panel 11 , so that the driving unit 121 can place the shading plates 122 in different areas in different states, thereby enabling regional adjustment of the display state.

[0090] Optionally, multiple sunshades can also belong to one sunshade group, and all sunshades in the sunshade assembly can belong to one sunshade group. Multiple sunshades are connected in parallel and in series with the driving unit. The driving unit 121 can simultaneously provide voltages of the same potential to all sunshades, so that the driving unit can control all sunshades to be in the same state, thereby achieving unified adjustment of the display state.

[0091] In an exemplary embodiment, the display panel includes at least two display areas, and the areas of the shading plates on at least two display areas are different. Please refer to Figures 13, 14 and 15. Figure 13 is a structural schematic diagram of another display device provided in an embodiment of the present application, and Figure 14 is an enlarged structural schematic diagram of a part of the structure in the display device provided in Figure 13 (Figure 14 may be an enlarged structural schematic diagram of a part of the structure in the display device provided in Figure 13 in the D11 area). Figure 15 is another enlarged structural schematic diagram of a part of the structure in the display device provided in Figure 13 (Figure 15 may be an enlarged structural schematic diagram of a part of the structure in the display device provided in Figure 13 in the D21 area). The display panel 11 includes two display areas: a first display area D1 and a second display area D2 surrounding the first display area D1. The D11 area and the D21 area are two areas of equal area in the first display area D1 and the second display area D2, respectively. The area of ​​the light shading plate 122 on the first display area D1 is different from the area of ​​the light shading plate 122 on the second display area D2, and the density of the light shading plates 122 on the two display areas is negatively correlated with the area of ​​the light shading plates 122 on the two display areas, that is, the smaller the area of ​​the light shading plates 122 on the display area, the greater the density of the light shading plates 122 on the display area, and the larger the area of ​​the light shading plates 122 on the display area, the smaller the density of the light shading plates 122 on the display area.

[0092] For example, the area of ​​the light shielding plates 122 in the second display area D2 is larger than that of the light shielding plates 122 in the first display area D1. In areas D11 and D21 of equal area, the number of light shielding plates 122 in area D21 is smaller than that in area D11. That is, the density of the light shielding plates 122 in the second display area D2 is lower than that in the first display area D1. The smaller the area of ​​the light shielding plates 122 and the greater the density of the light shielding plates 122, the finer the light shielding effect of the light shielding plates 122 on the display panel 11 in that display area, thereby improving the light shielding effect.

[0093] Optionally, at least two display areas correspond to at least two image resolutions, and the display areas are used to display images of corresponding image resolutions. The area of ​​the shading plate 122 is negatively correlated with the image resolution corresponding to the display area, that is, the larger the area of ​​the shading plate 122, the lower the image resolution corresponding to the display area, and the smaller the area of ​​the shading plate 122, the higher the image resolution corresponding to the display area. Image resolution refers to the number of pixels per inch in an image, and image resolution can reflect the clarity of the image. The physical resolution is the maximum number of pixels that the display panel 11 can display, and the physical resolution is an inherent parameter of the display panel 11. Then the image resolution corresponding to each display area of ​​the display panel 11 is not greater than the physical resolution of the display panel 11.

[0094] For example, the area of ​​the shading plate 122 on the second display area D2 is larger than the area of ​​the shading plate 122 on the first display area D1, and the image resolution corresponding to the first display area D1 is higher than the image resolution corresponding to the second display area D2. For example, the first display area D1 can be used to display fine images, and the density corresponding to the smaller shading plate 122 is also higher. Therefore, the smaller shading plate 122 can be used to adjust the shading of some details in the fine image, and the smaller shading plate 122 can achieve a more refined shading effect for the display panel 11. The second display area D2 can be used to display an image including text. When the background area of ​​the image needs to be covered, the larger shading plate 122 can also achieve a shading effect for the display panel 11. In this way, the shading effect of different display areas can be adjusted according to the image resolution, thereby increasing the adaptability of the shading component to different display areas. In addition, by making the area of ​​the shading plate 122 negatively correlated with the image resolution corresponding to the display area, the area of ​​the shading plate 122 on the display area corresponding to the lower image resolution can also be increased, so that the display area corresponding to the lower image resolution can tolerate process errors, thereby improving the yield of the display device.

[0095] Optionally, at least two display areas include multiple division methods. In addition to the situation shown in Figure 13, in the display device provided in the embodiment of the present application, at least two display areas can also be divided according to specific display requirements. Exemplarily, the at least two display areas can also include three display areas. The three display areas can include a first display area located near the center of the display panel, and a second display area and a third display area located on the upper and lower sides of the first display area, respectively. The first display area can be used as the main display area, and the second display area and the third display area can be used as auxiliary display areas. The embodiment of the present application does not limit this.

[0096] Optionally, please refer to Figure 16, which is a structural schematic diagram of another display device provided in an embodiment of the present application. The display panel 11 includes multiple display areas. When the voltage provided by the driving unit 121 is a first potential, the shading plates 122 on at least two display areas include at least one shading plate 122 in a flat state and at least one shading plate 122 in a curved state. Exemplarily, the display panel 11 includes four display areas: a third display area D3, a fourth display area D4, a fifth display area D5, and a sixth display area D6. The first potential can be 0V, that is, the initial states of the shading plates 122 on the four display areas can be different. In this way, without applying an external voltage, the shading plates 122 on the four display areas of the display panel 11 can achieve different shading effects, so that the four display areas of the display panel 11 can achieve different display states.

[0097] In addition, the initial state of the shading plate 122 in different areas can be set according to the display requirements of different areas. The initial state of the shading plate 122 can be a state with high frequency of use. For example, the third display area D3 can be a normally dark area, which includes a large area that needs to appear black. Therefore, the initial state of the shading plate 122 on the first surface 111 and the second surface 112 of the third display area D3 can be flat. The fourth display area D4 can be a first-surface display area, which uses the first surface 111 of the display panel 11 as its primary display surface. Therefore, the initial state of the shading plate 122 on the first surface 111 of the fourth display area D4 can be curved, while the initial state of the shading plate 122 on the second surface 112 can be flat. The fifth display area D5 can be a second-surface display area, which uses the second surface 112 of the display panel 11 as its primary display surface. Therefore, the initial state of the shading plate 122 on the second surface 112 of the fifth display area D5 can be curved, while the initial state of the shading plate 122 on the first surface 111 can be flat. The sixth display area D6 may be a double-sided display area, with the first surface 111 and the second surface 112 of the display panel 11 as primary display surfaces. Therefore, the initial state of the light shielding plates 122 on the first surface 111 and the second surface 112 of the sixth display area D6 may be a curved state.

[0098] In summary, the embodiments of the present application provide a display device including a display panel and a shading assembly, wherein the shading assembly includes a drive unit and a plurality of shading plates, wherein the drive unit is electrically connected to the shading plates, wherein the plurality of shading plates are arranged in an array on a target surface of the display panel, and one end of the shading plates is connected to the target surface, and wherein the shading plates are driven by the drive unit to be in a flat state or a curved state, wherein the area of ​​the orthographic projection of the shading plates in the flat state on the display panel is larger than the area of ​​the orthographic projection of the shading plates in the curved state on the display panel. In this way, the shading plates in the flat state and the curved state can achieve different shading areas, and the display panel can achieve different display states under different shading areas, thereby enabling the display device to achieve the functions of adjusting the shading effect and adjusting the display state, thereby enriching the display functions of the display device.

[0099] In this application, the term "at least one side of A and B" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, at least one side of A and B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0100] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0101] In this application, the terms "first", "second", "third", "fourth", "fifth" and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise expressly limited.

[0102] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display device, characterized in that: The display device includes: a display panel, the display panel comprising a first surface and a second surface opposite to the first surface; A shading assembly, wherein the shading assembly includes a driving unit and a plurality of shading plates, the driving unit is electrically connected to the shading plates, the plurality of shading plates are arranged in an array on a target surface of the display panel, and one end of the shading plate is connected to the target surface, the target surface is at least one of the first surface and the second surface, and the shading plate is in a flat state or a curved state when driven by the driving unit, and the area of ​​the orthographic projection of the shading plate in the flat state on the display panel is larger than the area of ​​the orthographic projection of the shading plate in the curved state on the display panel.

2. The display device according to claim 1, wherein The driving unit is used to provide a voltage of a first potential or a second potential to the light shielding plate, wherein the second potential is higher than the first potential; The shading plate is in one of the flat state and the curved state when the voltage provided by the driving unit is the first potential, and is in the other of the flat state and the curved state when the voltage provided by the driving unit is the second potential.

3. The display device according to claim 1, wherein The multiple shading plates are divided into at least one shading plate group, each shading plate group includes at least two shading plates, the driving unit includes at least one driving sub-unit, the at least one shading plate group corresponds to the at least one driving sub-unit respectively, and the shading plates of each shading plate group are electrically connected to the corresponding driving sub-unit.

4. The display device according to claim 3, wherein: The plurality of shading plates all belong to one shading plate group, and the plurality of shading plates are connected in parallel and then in series with the driving unit.

5. The display device according to claim 1, wherein The display panel includes at least two display areas, the areas of the shading plates on the at least two display areas are different, and the density of the shading plates on the at least two display areas is negatively correlated with the areas of the shading plates on the at least two display areas.

6. The display device according to claim 5, wherein: The at least two display areas correspond to at least two image resolutions, and the display areas are used to display images with corresponding image resolutions; The area of ​​the light shielding plate is negatively correlated with the image resolution corresponding to the display area.

7. The display device according to claim 6, wherein: The at least two display areas include a first display area and a second display area surrounding the first display area, and an area of ​​the light shielding plate on the second display area is larger than an area of ​​the light shielding plate on the first display area.

8. The display device according to claim 1, wherein The shading plate includes a conductive layer, and the shading assembly also includes an electrode structure layer and an insulating layer. The electrode structure layer is located on the side of the display panel close to the conductive layer, and the insulating layer is located between the conductive layer and the electrode structure layer. The orthographic projection of the electrode structure layer on the display panel overlaps with the orthographic projection of the conductive layer on the display panel, and the driving unit is electrically connected to the electrode structure layer and the conductive layer respectively.

9. The display device according to claim 2, wherein: The light shielding plate comprises a first flexible material layer, a conductive layer, and a second flexible material layer arranged in sequence in a direction away from the display panel in the flat state, and the driving unit is electrically connected to the conductive layer; The light shielding plate is in the flat state when the voltage provided by the driving unit is the first potential, and the thermal expansion coefficient of the first flexible material layer is greater than the thermal expansion coefficient of the second flexible material layer; Alternatively, the light shielding plate is in the bent state when the voltage provided by the driving unit is the first potential, and the thermal expansion coefficient of the first flexible material layer is smaller than the thermal expansion coefficient of the second flexible material layer.

10. The display device according to claim 2, wherein The display panel includes multiple display areas. When the voltage provided by the driving unit is the first potential, the shading plates on at least two of the display areas include at least one shading plate in the flat state and at least one shading plate in the curved state.

11. The display device according to claim 1, wherein The display panel includes a transparent display panel, and the light shielding plate is located on the first surface and the second surface.

12. The display device according to claim 1, wherein The display panel includes a transparent display panel, and the light shielding plate is located on the first surface or the second surface.

13. The display device according to claim 1, wherein The first surface is the display surface of the display panel, and the light shielding plate is located on the first surface; The display device further includes a light shielding layer, and the light shielding layer is located on the second surface.

14. The display device according to claim 1, wherein The shading plate includes a first portion close to one end of the shading plate and a second portion away from one end of the shading plate, wherein the first portion is fixedly disposed on at least one side of the display panel; In the bent state, the second portion bends in a direction away from the display panel, and in the flat state, the angle between the second portion and the display panel is smaller than the angle between the second portion and the display panel in the bent state; or, in the bent state, the second portion is scroll-shaped.

15. The display device according to any one of claims 1 to 14, characterized in that: In the curved state, an area of ​​an orthographic projection of the light shielding plate on the display panel is less than or equal to 0.1 of an area of ​​an orthographic projection of the light shielding plate on the display panel in the flat state.

Images