Display panel and display device

Abstract

The present application discloses a display panel and a display device, which relate to the field of display technology. The display panel includes an electrically actuated shading component, which is arranged between adjacent pixel units in the display panel. The first end of the electrically actuated shading component is connected to the first substrate and / or the second substrate, and the second end of the electrically actuated shading component is suspended. When the electrically actuated shading component is not powered on, the electrically actuated shading component is unfolded, and the second end of the electrically actuated shading component is away from the first end of the electrically actuated shading component to form a grating; when the electrically actuated shading component is powered on, the electrically actuated shading component is rolled up, and the second end of the electrically actuated shading component moves toward the first end of the electrically actuated shading component. The above scheme can be freely switched between the anti-peeping and non-anti-peeping states, thereby meeting the needs of users.

Description

Technical Field

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

[0002] Liquid crystal displays are currently widely used display devices. They have a series of advantages such as high color gamut, light weight, and fast response time. They have mature technologies in theoretical research and practical processes. Not only can they meet the needs of conventional displays, but they also have a variety of different display modes, such as transparent display, anti-peep display, dual-view display, etc.

[0003] Most of the existing anti-peeping display technologies are fixed anti-peeping display technologies, such as adding an anti-peeping film to the original display device to achieve anti-peeping display. The current anti-peeping display technology cannot intelligently switch between anti-peeping and non-anti-peeping states, which cannot better meet the needs of users. Summary of the invention

[0004] The purpose of the present application is to provide a display panel and a display device that can be freely switched between anti-peeping and non-anti-peeping states, thereby meeting the needs of users.

[0005] The present application discloses a display panel, which includes a first substrate and a second substrate arranged relatively to each other, and an electrically actuated shading component, wherein the electrically actuated shading component is arranged between adjacent pixel units in the display panel, wherein a first end of the electrically actuated shading component is connected to the first substrate and / or the second substrate, and a second end of the electrically actuated shading component is suspended; when the electrically actuated shading component is not powered on, the electrically actuated shading component is unfolded, and the second end of the electrically actuated shading component is away from the first end of the electrically actuated shading component to form a grating; when the electrically actuated shading component is powered on, the electrically actuated shading component is rolled up, and the second end of the electrically actuated shading component moves toward the direction of the first end of the electrically actuated shading component.

[0006] Optionally, the first end of the electrically-actuated light-shielding assembly is connected to the first substrate, and when the electrically-actuated light-shielding assembly is not powered on, the second end of the electrically-actuated light-shielding assembly abuts against the second substrate to form a grating; when the electrically-actuated light-shielding assembly is powered on, the second end of the electrically-actuated light-shielding assembly moves toward the first end of the electrically-actuated light-shielding assembly in a direction perpendicular to the first substrate, thereby separating the electrically-actuated light-shielding assembly from the second substrate.

[0007] Optionally, the electrically actuated shading assembly includes a first material layer, a second material layer and a heating element, the first material layer is made of a shading material, the second material layer is made of a heat-expanding material, the first material layer is attached to the surface of the second material layer, and the heating element is respectively connected to the second material layer and the conductive wires on the first substrate; when the heating element is energized, the heating element generates heat, the second material layer shrinks due to the heat, and drives the first material layer to roll up; when the heating element is not energized, the heating element does not generate heat, and the second material layer and the first material layer are in an unfolded state.

[0008] Optionally, the heating element is a linear structure, and the heating element is arranged around the edge of the second material layer.

[0009] Optionally, the first material layer is a light-shielding coating sprayed on the second material layer.

[0010] Optionally, the electrically actuated shading assembly includes a first material layer and a second material layer, the first material layer is composed of a conductive shading material, the second material layer is composed of a heat-expandable material, the first material layer is attached to the surface of the second material layer, and the first material layer is connected to the conductive wire on the first substrate; when the first material layer is energized, the first material layer generates heat, the second material layer shrinks due to the heat, and drives the first material layer to roll up; when the first material layer is not energized, the first material layer does not generate heat, and the second material layer and the first material layer are in an unfolded state.

[0011] Optionally, a groove is provided on a side of the second substrate facing the first substrate, and the groove is arranged opposite to the electrically-actuated shading component; and a height of the electrically-actuated shading component is greater than a distance between the first substrate and the second substrate.

[0012] Optionally, the pixel unit is a single sub-pixel or a sub-pixel array.

[0013] Optionally, the first end of the electrically-actuated shading assembly is respectively connected to the first substrate and the second substrate, and when the electrically-actuated shading assembly is not powered on, the second end of the electrically-actuated shading assembly unfolds to form a grating; when the electrically-actuated shading assembly is powered on, the second end of the electrically-actuated shading assembly moves toward the first end of the electrically-actuated shading assembly in a direction parallel to the first substrate.

[0014] The present application also discloses a display device, which includes a backlight module and the display panel as described above, wherein the backlight module provides backlight for the display panel.

[0015] The present application utilizes the characteristics of the electrically actuated shading component that can be retracted when powered on. When the display panel needs to be switched to the anti-peeping state, the electrically actuated shading component is disconnected from the powered state. At this time, the electrically actuated shading component is unfolded to form a grating structure, which blocks the light emitted by the pixel unit toward the side of the display panel, thereby achieving an anti-peeping effect. When the display panel needs to be switched to the non-anti-peeping state, the electrically actuated shading component is powered on. At this time, the electrically actuated shading component is retracted and contracted, so that the light emitted by the pixel unit can be irradiated to the side of the display panel, thereby achieving a non-anti-peeping effect. Since the display panel in the present application can be freely switched between the anti-peeping and non-anti-peeping states through the electrically actuated shading component, it can better meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. 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 creative work. In the drawings:

[0017] Figure 1 is a schematic diagram of a display device provided in an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of a first state of a display panel provided by the first embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a second state of a display panel provided by the first embodiment of the present application;

[0020] Figure 4 is a schematic diagram of an implementation of the electrically actuated shading assembly in the first embodiment of the present application;

[0021] Figure 5 is a schematic diagram of a heating element in the first embodiment of the present application;

[0022] Figure 6 is a schematic diagram of another implementation of the electrically actuated shading assembly in the first embodiment of the present application;

[0023] Figure 7 is another schematic diagram of the display panel in the first embodiment of the present application;

[0024] Figure 8 is another schematic diagram of the display panel in the first embodiment of the present application;

[0025] Fig. 9 is a schematic diagram of a first state of a display panel provided by a second embodiment of the present application;

[0026] Fig.10 This is a schematic diagram of a second state of a display panel provided in the second embodiment of the present application.

[0027] Among them, 10, display device; 100, display panel; 110, first substrate; 111, conductive line; 112, baffle; 120, second substrate; 121, groove; 130, electrically actuated shading component; 131, first end; 132, second end; 133, first material layer; 134, second material layer; 135, heating element; 140, support column; 150, pixel unit; 200, backlight module. DETAILED DESCRIPTION

[0028] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative, but the present application can be implemented in many alternative forms and should not be construed as being limited to only the embodiments described herein.

[0029] In addition, unless otherwise clearly specified or limited, "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internally connected between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The present application is further described below with reference to the accompanying drawings and optional embodiments.

[0031] like Figure 1 As shown, the embodiment of the present application discloses a display device, the display device 10 includes a backlight module 200 and a display panel 100, the backlight module 200 provides backlight for the display panel 100. The display panel 100 is a liquid crystal panel, and the detailed design of the display panel 100 refers to the following specific embodiment.

[0032] First embodiment

[0033] like Figure 2 and Figure 3 As shown, Figure 2 is a schematic diagram of the display panel when the electrically actuated shading component is not powered. Figure 3It is a schematic diagram of the display panel when the electrically-actuated shading component is powered on. As the display panel provided in the first embodiment of the present application, the display panel 100 includes a first substrate 110 and a second substrate 120 that are relatively arranged. The display panel 100 also includes an electrically-actuated shading component 130, and the electrically-actuated shading component 130 is arranged between adjacent pixel units 150 in the display panel 100; the first end 131 of the electrically-actuated shading component 130 is connected to the first substrate 110 and / or the second substrate 120, and the second end 132 of the electrically-actuated shading component 130 is suspended.

[0034] When the electrically-actuated light shielding component 130 is not powered, the electrically-actuated light shielding component 130 is unfolded, and the second end 132 of the electrically-actuated light shielding component 130 is away from the first end 131 of the electrically-actuated light shielding component 130 to form a grating, and the electrically-actuated light shielding component 130 blocks the light irradiated to the side from the pixel unit 150. When the electrically-actuated light shielding component 130 is powered, the electrically-actuated light shielding component 130 is rolled up, and the second end 132 of the electrically-actuated light shielding component 130 moves toward the direction of the first end 131 of the electrically-actuated light shielding component 130, and the light emitted by the pixel unit 150 can irradiate to the side.

[0035] The electro-actuated shading component 130 may be directly exposed in the liquid crystal box, or, in order to prevent the liquid crystal from hindering the extension and retraction of the electro-actuated shading component 130, the electro-actuated shading component 130 may be disposed in a vacuum chamber, which separates the electro-actuated shading component 130 from the liquid crystal.

[0036] The present application utilizes the property of the electrically-actuated shading component 130 to be rolled up when it is necessary to switch the display panel 100 to the anti-peeping state, and the electrically-actuated shading component 130 is disconnected from the power-on state. At this time, the electrically-actuated shading component 130 is unfolded to form a grating structure, and the light emitted from the pixel unit 150 toward the side of the display panel 100 is blocked to achieve the anti-peeping effect; when the display panel 100 needs to be switched to the non-anti-peeping state, the electrically-actuated shading component 130 is powered on, and the electrically-actuated shading component 130 is rolled up and contracted to expose the gap between the two substrates, so that the light emitted by the pixel unit 150 can irradiate the side of the display panel 100, thereby achieving the non-anti-peeping effect. Since the display panel 100 in the present application can realize the free switching between the anti-peeping and non-anti-peeping states through the electrically-actuated shading component 130, it can better meet the needs of users.

[0037] In the embodiment of the present application, the working principle of the electrically-actuated shading assembly 130 is similar to the design of a rolling shutter. Specifically, the first end 131 of the electrically-actuated shading assembly 130 is connected to the first substrate 110. When the electrically-actuated shading assembly 130 is not powered on, the second end 132 of the electrically-actuated shading assembly 130 abuts against the second substrate 120 to form a grating. At this time, the light of the pixel unit 150 cannot be emitted through the gap between the second end 132 of the electrically-actuated shading assembly 130 and the second substrate 120, so that the display content cannot be seen from the side of the display panel 100. When the electrically-actuated shading component 130 is powered on, the second end 132 of the electrically-actuated shading component 130 moves toward the first end 131 of the electrically-actuated shading component 130 in a direction perpendicular to the first substrate 110, so that there is a gap between the second end 132 of the electrically-actuated shading component 130 and the second substrate 120. At this time, the light emitted by the pixel unit 150 can be emitted through the gap between the second end 132 of the electrically-actuated shading component 130 and the second substrate 120, so that the display content can be seen from the side of the display panel 100.

[0038] With the design of the embodiment of the present application, since the thickness of the display panel 100 is small and the spacing between the first substrate 110 and the second substrate 120 is small, the electrically actuated shading component 130 only needs to be slightly changed in the thickness direction of the display panel 100 to achieve the switch between anti-peeping and non-anti-peeping, with fast switching speed and good switching effect. Moreover, since the electrically actuated shading component 130 is made inside the display panel 100, located between the first substrate 110 and the second substrate 120, the thickness of the display panel 100 will not be increased.

[0039] The electrically-actuated shading components 130 can be distributed on one side of each pixel unit 150, or on two sides, three sides, or four sides of each pixel unit 150, to achieve single-side anti-peeping, double-side anti-peeping, three-side anti-peeping, or even full anti-peeping display mode, and the specific design is adjusted according to actual needs. Moreover, when the electrically-actuated shading components 130 are distributed on multiple sides of each pixel unit 150, the electrically-actuated shading components 130 on each side can be controlled separately, so that the switching of single-side anti-peeping, double-side anti-peeping, three-side anti-peeping, and full anti-peeping can be achieved in the same display panel 100 to meet a variety of actual needs. In addition, taking one side of the display panel 100 as an example, each pixel unit 150 is only provided with one electro-actuated shading component 130 on one side, and the electro-actuated shading component 130 can complete the switching between the anti-peeping state and the non-anti-peeping state; a plurality of electro-actuated shading components 130 can also be provided on one side of the display panel 100, and the plurality of electro-actuated shading components 130 work together. When powered on, the plurality of electro-actuated shading components 130 are combined to form a barrier wall to block the light from passing through, thereby improving the light blocking effect.

[0040] Regarding the specific design of the electrically-actuated shading assembly 130 , the present application provides the following two specific implementations.

[0041] like Figure 4 As shown, as an implementation mode of the electrically-actuated shading component, the electrically-actuated shading component 130 includes a first material layer 133, a second material layer 134 and a heating element 135, the first material layer 133 is made of a shading material, the second material layer 134 is made of a thermal expansion material, the first material layer 133 is attached to the surface of the second material layer 134, and the heating element 135 is respectively connected to the second material layer 134 and the conductive wire 111 on the first substrate 110; when the heating element 135 is energized, the heating element 135 generates heat, the second material layer 134 shrinks due to the heat, and drives the first material layer 133 to roll up; when the heating element 135 is not energized, the heating element 135 does not generate heat, and the second material layer 134 and the first material layer 133 are in an unfolded state.

[0042] With the design of this embodiment, since the thermal expansion material is easily deformed by heat and is prone to a large degree of deformation when heated, after the heating element 135 is energized, the distance between the bottom of the second material layer 134 and the second substrate 120 is pulled apart by a large distance, further weakening the light blocking effect, thereby making the non-peeping state more effective.

[0043] Specifically, the first material layer 133 is made of black rubber material, which can block light and deform. At this time, the first material layer 133 is bonded to the surface of the second material layer 134 by bonding, and the contact surfaces of the first material layer 133 and the second material layer 134 are coated with adhesive to prevent the first material layer 133 from being affected by the heat and deformation of the second material layer 134, resulting in local detachment between the first material layer 133 and the second material layer 134.

[0044] Alternatively, the first material layer 133 is made of black paint, and the black paint is directly sprayed on the surface of the second material layer 134. At this time, the second material layer 134 will hardly be affected by the gravity of the first material layer 133 when deforming, so that the deformation changes quickly, and the display panel 100 can switch between the anti-peeping state and the non-anti-peeping state more quickly.

[0045] The second material layer 134 is a polymer material with a large expansion coefficient, such as silicone rubber, polyimide, polydimethylsiloxane, nitrile rubber, etc. After being heated by the heating element 135, the second material layer 134 will bend and deform rapidly.

[0046] The heating element 135 can be made of general heat-conducting metal. The heating element 135 can be connected only to the top of the second material layer 134 , or can cover the surface of the second material layer 134 away from the first material layer 133 , or can be attached to other local areas of the second material layer 134 .

[0047] Optional, such as Figure 5 As shown, the heating element 135 adopts a linear structure of a heating wire, and after the heating element 135 is connected to the conductive wire 111 on the first substrate 110, it is arranged around the edge of the second material layer 134. Since the heating element 135 adopts a heating wire, the area of ​​the heating element 135 is small, which reduces the power loss; moreover, the cross-section of the heating wire is thin, and the bending of the second material layer 134 will not be affected by its own rigidity; in addition, the heating element 135 surrounds the edge of the second material layer 134, and can quickly transfer heat to the edge of the second material layer 134, so that the edge of the second material layer 134 drives the internal part to bend quickly.

[0048] In this embodiment, the overall weight of the electrically-actuated shading assembly 130 can be borne only by the heating element 135, in which case the electrically-actuated shading assembly 130 is connected to the first substrate 110 only through the heating element 135; or, the overall weight of the electrically-actuated shading assembly 130 is borne by the heating element 135 and the second material layer 134, in which case the second material layer 134 is fixed to the first substrate 110 by bonding, clamping, etc., and the heating element 135 is connected to the conductive wire 111 of the first substrate 110 by welding; or, the overall weight of the electrically-actuated shading assembly 130 is borne by the heating element 135, the first material layer 133, and the second material layer 134 at the same time, in which case the first material layer 133 and the second material layer 134 are fixed to the first substrate 110 by bonding, clamping, etc., and the heating element 135 is connected to the conductive wire 111 of the first substrate 110 by welding.

[0049] like Figure 6 As shown, as another embodiment of the electrically-actuated shading component, the electrically-actuated shading component 130 includes a first material layer 133 and a second material layer 134, the first material layer 133 is composed of a conductive shading material, the second material layer 134 is composed of a thermal expansion material, the first material layer 133 is attached to the surface of the second material layer 134 by bonding, and the first material layer 133 is connected to the conductive line 111 on the first substrate 110; when the first material layer 133 is energized, the first material layer 133 generates heat, the second material layer 134 shrinks due to the heat, and drives the first material layer 133 to roll up; when the first material layer 133 is not energized, the first material layer 133 does not generate heat, and the second material layer 134 and the first material layer 133 are in an unfolded state.

[0050] By adopting the design scheme of this embodiment, the first material layer 133 can serve as both a heating structure and a shading structure, thereby simplifying the design of the electrically actuated shading assembly 130; and the first material layer 133 and the second material layer 134 are completely fitted together, and the first material layer 133 can heat the front side of the second material layer 134, so that the second material layer 134 is better heated and has a greater degree of bending deformation.

[0051] Specifically, the first material layer 133 is a conductive light-shielding micro-nano material such as graphene, carbon nanotubes, and carbon black, which can achieve the effects of heating and light-shielding without affecting the deformation of the second material layer 134. The second material layer 134 is made of a polymer material with a large expansion coefficient, such as silicone rubber, polyimide, polydimethylsiloxane, nitrile rubber, etc.

[0052] In the embodiment of the present application, the first material layer 133 is disposed on the side of the second material layer 134 away from the display area. At this time, when the display panel 100 is in the anti-peeping state, even if the display area emits strong light, the light emitted by the display area is weakened by the second material layer 134, and even if the first material layer 133 is thin, there will be no light transmission problem, thereby ensuring the anti-peeping effect.

[0053] In the embodiment of the present application, the heating structure in the electrically-actuated shading assembly 130 is arranged on the side of the second material layer 134 away from the display area. At this time, the second material layer 134 bends in the direction away from the display area when heated, thereby reducing the blocking area of ​​light caused by the bending deformation of the first material layer 133 and the second material layer 134, thereby achieving a better display effect in the non-peeping state.

[0054] In the embodiment of the present application, the thickness of the second material layer 134 is greater than the thickness of the first material layer 133. When the second material layer 134 is heated, due to its greater thickness, a greater deformation force can be generated per unit area, thereby being able to bend to a greater degree.

[0055] like Figure 7 As shown, in the embodiment of the present application, a groove 121 is provided on the side of the second substrate 120 facing the first substrate 110, and the groove 121 is arranged opposite to the electrically-actuated light shielding component 130; the height of the electrically-actuated light shielding component 130 is greater than the distance between the first substrate 110 and the second substrate 120. At this time, when the electrically-actuated light shielding component 130 is not powered on, the second end 132 of the electrically-actuated light shielding component 130 can penetrate into the groove 121, preventing light from penetrating through the gap between the second end 132 of the electrically-actuated light shielding component 130 and the second substrate 120, thereby affecting the anti-peeping effect.

[0056] Furthermore, the bottom of the groove 121 is a slope, and the upward inclination direction of the slope is the same as the bending and rolling direction of the electrically-actuated light shielding component 130 when it is powered on. At this time, when the electrically-actuated light shielding component 130 is disconnected from the power supply, the second end 132 of the electrically-actuated light shielding component 130 is unfolded downward, and when the second end 132 of the electrically-actuated light shielding component 130 falls into the groove 121, the inclined surface at the bottom of the groove 121 can guide the second end 132 of the electrically-actuated light shielding component 130 to fall directly below; secondly, the groove 121 can be formed when the passivation layer and the flat layer are made, so that when the alignment liquid is applied, the groove 121 can also prevent the alignment liquid from overflowing.

[0057] like Figure 8 As shown, in the embodiment of the present application, a baffle 112 is provided on the first substrate 110, and the baffle 112 abuts against the first end 131 of the electrically-actuated shading assembly 130. In this way, when the display device 10 rotates, the baffle 112 can support the electrically-actuated shading assembly 130 to prevent the electrically-actuated shading assembly 130 from falling and affecting the anti-peeping effect.

[0058] In addition, in this embodiment, the pixel unit 150 may represent a sub-pixel, and the electrically-actuated shading component 130 is disposed between two adjacent sub-pixels; thus, when the anti-peeping state is switched, the anti-peeping effect is better.

[0059] Alternatively, each pixel unit 150 may represent a plurality of sub-pixels arranged in an array, in which case a plurality of sub-pixels are spaced between two adjacent electrically-actuated shading components 130. This method effectively reduces the number of electrically-actuated shading components 130 in the display panel 100, making it easier to design and manufacture; moreover, since the electrically-actuated shading components 130 block light, reducing the number of electrically-actuated shading components 130 can also prevent the aperture ratio of the display panel 100 from being reduced.

[0060] Second embodiment

[0061] like Fig. 9 and Fig.10 As shown, Fig. 9 is a schematic diagram of the display panel when the electrically actuated shading component is not powered. Fig.10is a schematic diagram of the display panel when the electrically-actuated shading assembly is powered on, and L in the figure represents the length of the electrically-actuated shading assembly 130. As a display panel provided in the second embodiment of the present application, the difference from the first embodiment is that the electrically-actuated shading assembly 130 in the embodiment of the present application adopts a movement method similar to that of a sliding door. Specifically, the first end 131 of the electrically-actuated shading assembly 130 is connected to the first substrate 110 and the second substrate 120 respectively, and when the electrically-actuated shading assembly 130 is not powered on, the second end 132 of the electrically-actuated shading assembly 130 unfolds to form a grating; when the electrically-actuated shading assembly 130 is powered on, the second end 132 of the electrically-actuated shading assembly 130 moves toward the first end 131 of the electrically-actuated shading assembly 130 in a direction parallel to the first substrate 110.

[0062] In the embodiment of the present application, the electrically-actuated shading assembly 130 forms a structure similar to a support column after being rolled up without being energized, which can support the two substrates and further reduce the blocking area of ​​the light effect.

[0063] Furthermore, the first end 131 of the electrically-actuated shading component 130 can also be fixed on the support column 140 in the display panel 100 at the same time, so as to improve the stability of the first end 131 of the electrically-actuated shading component 130 .

[0064] In addition, the inventive concept of the present application can form a large number of implementation plans, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the various implementation plans or technical features described above can be arbitrarily combined to form a new embodiment. After the various implementation plans or technical features are combined, the original technical effects will be enhanced.

[0065] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A display panel, comprising a first substrate and a second substrate arranged opposite to each other, characterized in that: The display panel further includes: An electrically actuated light shielding component is disposed between adjacent pixel units in the display panel, a first end of the electrically actuated light shielding component is connected to the first substrate, and a second end of the electrically actuated light shielding component is suspended; When the electrically-actuated shading component is not powered on, the electrically-actuated shading component is unfolded, and the second end of the electrically-actuated shading component is away from the first end of the electrically-actuated shading component to form a grating; when the electrically-actuated shading component is powered on, the electrically-actuated shading component is rolled up, and the second end of the electrically-actuated shading component moves toward the first end of the electrically-actuated shading component; When the electrically-actuated shading component is not powered on, the second end of the electrically-actuated shading component abuts against the second substrate to form a grating; when the electrically-actuated shading component is powered on, the second end of the electrically-actuated shading component moves toward the first end of the electrically-actuated shading component in a direction perpendicular to the first substrate, so that the electrically-actuated shading component is spaced apart from the second substrate; The electrically actuated light-shielding assembly comprises a first material layer, a second material layer and a heating element, wherein the first material layer is made of a light-shielding material, the second material layer is made of a thermal expansion material, the first material layer is attached to the surface of the second material layer, and the heating element is respectively connected to the second material layer and the conductive wire on the first substrate; When the heating element is powered on, it generates heat, the second material layer shrinks due to the heat, and drives the first material layer to roll up; when the heating element is not powered on, it does not generate heat, and the second material layer and the first material layer are in an unfolded state.

2. The display panel according to claim 1, wherein: The heating element is a linear structure, and the heating element is arranged around the edge of the second material layer.

3. The display panel according to claim 1, wherein: The first material layer is a light-shielding coating sprayed on the second material layer.

4. The display panel according to claim 1, wherein: A groove is provided on a side of the second substrate facing the first substrate, and the groove is arranged opposite to the electrically actuated light shielding component; The height of the electrically-actuated shading component is greater than the distance between the first substrate and the second substrate.

5. The display panel according to claim 1, wherein: The pixel unit is a single sub-pixel or a sub-pixel array.

6. A display panel, comprising a first substrate and a second substrate arranged opposite to each other, characterized in that: The display panel further includes: An electrically actuated light shielding component is disposed between adjacent pixel units in the display panel, a first end of the electrically actuated light shielding component is connected to the first substrate, and a second end of the electrically actuated light shielding component is suspended; When the electrically-actuated shading component is not powered on, the electrically-actuated shading component is unfolded, and the second end of the electrically-actuated shading component is away from the first end of the electrically-actuated shading component to form a grating; when the electrically-actuated shading component is powered on, the electrically-actuated shading component is rolled up, and the second end of the electrically-actuated shading component moves toward the first end of the electrically-actuated shading component; When the electrically-actuated shading component is not powered on, the second end of the electrically-actuated shading component abuts against the second substrate to form a grating; when the electrically-actuated shading component is powered on, the second end of the electrically-actuated shading component moves toward the first end of the electrically-actuated shading component in a direction perpendicular to the first substrate, so that the electrically-actuated shading component is spaced apart from the second substrate; The electrically actuated shading assembly comprises a first material layer and a second material layer, wherein the first material layer is made of a conductive shading material, and the second material layer is made of a thermal expansion material, the first material layer is attached to the surface of the second material layer, and the first material layer is connected to the conductive line on the first substrate; When the first material layer is powered on, it generates heat, the second material layer shrinks due to the heat, and drives the first material layer to roll up; when the first material layer is not powered on, it does not generate heat, and the second material layer and the first material layer are in an unfolded state.

7. A display device, characterized in that: The invention comprises a backlight module and a display panel as claimed in any one of claims 1 to 6, wherein the backlight module provides backlight for the display panel.

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