Display module, display method and display device

Abstract

The present disclosure provides a display module and a display method and a display device thereof. The display module comprises: a flexible display panel; a first magnetic structure fixed to the backlight side of the flexible display panel; a second magnetic structure located on a side of the first magnetic structure away from the flexible display panel, the second magnetic structure being able to apply an attractive force and / or a repulsive force to the first magnetic structure; wherein at least one of the first magnetic structure and the second magnetic structure is an electromagnetic structure. The present disclosure can realize 3D dynamic display.

Description

Technical Field

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

[0002] With the continuous development of display technology, some new display forms have gradually become the focus of people's attention.

[0003] 3D dynamic display is one of the hot spots in the development of new display forms. 3D dynamic display can make some display scenes three-dimensional. For example, when the display panel shows a landscape picture with mountains and water, the display panel can be raised at the location of the mountains, or sunken at the location of the water, so as to make the presented scene three-dimensional. However, it is difficult for existing display modules to achieve 3D dynamic display. Summary of the invention

[0004] The purpose of the present disclosure is to provide a display module and a display method and a display device thereof, which can realize 3D dynamic display.

[0005] According to one aspect of the present disclosure, there is provided a display module, comprising:

[0006] Flexible display panels;

[0007] A first magnetic structure, fixed to the backlight side of the flexible display panel;

[0008] a second magnetic structure, located at a side of the first magnetic structure away from the flexible display panel, the second magnetic structure being capable of applying an attractive force and / or a repulsive force to the first magnetic structure;

[0009] Wherein, at least one of the first magnetic structure and the second magnetic structure is an electromagnetic structure.

[0010] Furthermore, the first magnetic structure includes a first supporting layer and a first magnetic body disposed on the first supporting layer, and the first supporting layer is made of a flexible material; and / or

[0011] The second magnetic structure includes a second supporting layer and a second magnetic body disposed on the second supporting layer.

[0012] Furthermore, the first magnetic body is arranged on a side of the first supporting layer away from the flexible display panel.

[0013] Furthermore, the second magnetic body is arranged on a side of the second supporting layer close to the flexible display panel.

[0014] Furthermore, the display module further includes:

[0015] A spacer layer is located between the first magnetic structure and the second magnetic structure; the second magnetic body is fixed between the second supporting layer and the spacer layer; the first magnetic body can contact the spacer layer under the attraction of the second magnetic structure, and can be separated from the spacer layer under the repulsion of the second magnetic structure.

[0016] Furthermore, one of the first magnetic body and the second magnetic body is a permanent magnet, and the other is an electromagnet; the two magnetic poles of the permanent magnet are distributed along the thickness direction of the flexible display panel, and the electromagnet includes a coil, and the axis of the coil is parallel to the thickness direction of the flexible display panel.

[0017] Furthermore, the orthographic projection of the permanent magnet on the flexible display panel is a polygon or a circle.

[0018] Furthermore, there are multiple permanent magnets and multiple electromagnets, and in a direction perpendicular to the thickness direction of the flexible display panel, the multiple permanent magnets and the multiple electromagnets are evenly distributed.

[0019] Furthermore, there are multiple permanent magnets and multiple electromagnets, and the directions of the magnetic fields generated by two of the multiple electromagnets are the same or opposite.

[0020] Furthermore, a cover plate is provided on a side of the flexible display panel away from the first magnetic structure, and a material of the cover plate is a material with a variable modulus.

[0021] Furthermore, the material of the first magnetic body and / or the second magnetic body includes heat dissipation material.

[0022] According to one aspect of the present disclosure, a display method of a display module is provided, wherein the display method adopts the display module, and the display method comprises:

[0023] Applying a repulsive force to the first magnetic structure through the second magnetic structure, so that the flexible display panel bulges outward; or

[0024] An attractive force is applied to the first magnetic structure through the second magnetic structure, so that the flexible display panel is recessed.

[0025] According to one aspect of the present disclosure, a display device is provided, comprising the display module.

[0026] In the display module and display method and display device disclosed herein, the first magnetic structure is fixed to the backlight side of the flexible display panel. The second magnetic structure is located on the side of the first magnetic structure away from the flexible display panel; on the one hand, the second magnetic structure applies a repulsive force to the first magnetic structure, so that the flexible display panel bulges outward to form a 3D dynamic display effect; on the other hand, the second magnetic structure applies an attractive force to the first magnetic structure, so that the flexible display panel is concave, which can also form a 3D dynamic display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a display module in a flattened state according to an embodiment of the present disclosure.

[0028] Figure 2 is a schematic diagram of a display module in a raised state according to an embodiment of the present disclosure.

[0029] Figure 3 is a schematic diagram of a display module in a recessed state according to an embodiment of the present disclosure.

[0030] Figure 4 It is a schematic diagram of the display module of the embodiment of the present disclosure forming a convex state.

[0031] Figure 5 It is a schematic diagram of the display module forming a recessed state according to an embodiment of the present disclosure.

[0032] Figure 6 is a schematic diagram of a flexible display panel according to an embodiment of the present disclosure.

[0033] Figure 7 is a schematic diagram of a first magnetic structure according to an embodiment of the present disclosure.

[0034] Explanation of the accompanying drawings: 1. Flexible display panel; 2. First magnetic structure; 201. First supporting layer; 202. First magnetic body; 3. Second magnetic structure; 301. Second supporting layer; 302. Second magnetic body; 3021. Coil; 3022. Iron core; 4. Spacer layer; 5. Cover plate; 6. Flexible protective film. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0036] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. "Multiple" or "several" means two and more than two. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. As used in this disclosure and the appended claims, the singular forms "a", "an", "said", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

[0037] The present disclosure provides a display module. Figure 1 As shown, the display module may include a flexible display panel 1, a first magnetic structure 2 and a second magnetic structure 3, wherein:

[0038] The first magnetic structure 2 is fixed to the backlight side of the flexible display panel 1. The second magnetic structure 3 is located on the side of the first magnetic structure 2 away from the flexible display panel 1. The second magnetic structure 3 can apply attractive force and / or repulsive force to the first magnetic structure 2. At least one of the first magnetic structure 2 and the second magnetic structure 3 is an electromagnetic structure.

[0039] In the display module of the embodiment of the present disclosure, the first magnetic structure 2 is fixed to the backlight side of the flexible display panel 1, and the second magnetic structure 3 is located on the side of the first magnetic structure 2 away from the flexible display panel 1; on the one hand, Figure 2 As shown, by applying a repulsive force to the first magnetic structure 2 through the second magnetic structure 3, the flexible display panel 1 can be bulged outward to form a 3D dynamic display effect; on the other hand, as shown Figure 3 As shown, by applying attractive force to the first magnetic structure 2 through the second magnetic structure 3, the flexible display panel 1 can be made concave, and a 3D dynamic display effect can also be formed.

[0040] The following is a detailed description of each part of the display module according to the embodiment of the present disclosure:

[0041] like Figure 1 As shown, the flexible display panel 1 may include a substrate, an array substrate and a light-emitting layer. The substrate may be a flexible substrate, and its material may be polyimide (PI) or the like. A hole may be opened in a specific area of ​​the substrate so that the substrate has a certain deformation ability, and the hole opened may be a straight line, or an I-shaped hole. The array substrate may be arranged on one side of the substrate. The array substrate may include a plurality of thin film transistors distributed in an array. The light-emitting layer may be arranged on a side of the array substrate away from the substrate. The light-emitting layer may be an OLED light-emitting layer, or, of course, an LED light-emitting layer, but the present disclosure is not limited thereto. Taking the light-emitting layer as an OLED light-emitting layer as an example, the light-emitting layer may include an anode, a cathode and an organic electroluminescent material layer. The anode and the cathode are arranged oppositely, and the organic electroluminescent material layer may be located between the anode and the cathode. An encapsulation layer may be provided on one side of the light-emitting layer away from the substrate. The encapsulation layer may be a thin film encapsulation layer (TFE), which may include a first inorganic encapsulation layer, an organic layer and a second inorganic encapsulation layer arranged in a stacked manner. The material of the first inorganic encapsulation layer may be SiON or the like. The material of the organic layer may be an acrylic material or the like. The material of the second inorganic encapsulation layer can be SiN or the like. In addition, the present disclosure also requires corresponding side encapsulation at the substrate opening to improve reliability. In addition, a flexible protective film 6 can be provided on the side of the substrate facing away from the light-emitting layer, which can be a soft film such as PO, TPU, or a film material such as PET or PI with openings. In short, it is ensured to have a certain tensile deformation ability, and its thickness can be 30μm-150μm.

[0042] In addition, if Figure 1As shown, a cover plate 5 may be provided on one side of the flexible display panel 1 away from the first magnetic structure 2. The material of the cover plate 5 may be a flexible material, such as thermoplastic polyurethane elastomer rubber (TPU). At the same time, the surface of the cover plate 5 may be treated with anti-fingerprint and anti-glare treatments. The thickness of the cover plate 5 may be 50 μm-200 μm. In other embodiments of the present disclosure, the material of the cover plate 5 may be a material with a variable modulus. The material with a variable modulus refers to a material whose modulus is variable under certain light, electricity or heat conditions. For example, the material with a variable modulus may be a stretchable PET. The stretchable PET has a high modulus under normal conditions and has a certain surface hardness; under temperature stimulation, such as high temperature stimulation above 80°C, the stretchable PET becomes soft; when the temperature drops, the stretchable PET returns to a harder state; with such a configuration, when the display module is switched from a planar display state to a 3D dynamic display state, the present disclosure can change the modulus of the cover plate 5 through external stimulation (light, electricity or heat) to enable it to deform; after the display module enters the 3D display state, the external stimulation to the cover plate 5 can be canceled to allow the cover plate 5 to maintain the 3D dynamic display form.

[0043] like Figures 1 to 3As shown, the first magnetic structure 2 is fixed to the backlight side of the flexible display panel 1. Among them, the first magnetic structure 2 can be fixed to the above-mentioned flexible protective film 6. The first magnetic structure 2 may include a first supporting layer 201 and a first magnetic body 202. The first supporting layer 201 may be a flexible material, such as soft materials such as foam, silicone, rubber, etc., which can play a role of buffer protection on the one hand and eliminate the mold print on the other hand. The size of the first supporting layer 201 may be the same as that of the flexible display panel 1. The thickness of the first supporting layer 201 may be 50μm-200μm, such as 50μm, 100μm, 160μm, 200μm, etc. The material of the first magnetic body 202 may include a heat dissipation material, which solves the problem that the general heat sink cannot be deformed and cannot be integrated in the 3D dynamic display module. The heat dissipation material may be a metal material, but is not limited thereto, and may also be a non-metallic material, such as a graphite sheet, thermal conductive silicone grease, etc. The first magnetic body 202 can be arranged on the side of the first supporting layer 201 away from the flexible display panel 1, that is, the first supporting layer 201 can be attached to the backlight side of the flexible display panel 1. Among them, the present disclosure can bond the first supporting layer 201 to the backlight side of the flexible display panel 1. In addition, the first magnetic body 202 can cover all areas of the first supporting layer 201, that is, by controlling the movement of the first magnetic body 202, the entire area of ​​the flexible display panel 1 can be controlled to perform 3D dynamic display. Of course, the first magnetic body 202 can be arranged in a partial area of ​​the first supporting layer 201, that is, by controlling the movement of the first magnetic body 202, only a partial area of ​​the flexible display panel 1 is controlled to perform 3D dynamic display; for example, the first supporting layer 201 includes a first supporting area, and the first magnetic body 202 is only arranged in the first supporting area, and the first magnetic body 202 is not arranged in the area outside the first supporting area.

[0044] like Figures 1 to 3 As shown, the second magnetic structure 3 is located on a side of the first magnetic structure 2 away from the flexible display panel 1. Figure 4 As shown, the second magnetic structure 3 can exert a repulsive force on the first magnetic structure 2 to keep the first magnetic structure 2 away from the second magnetic structure 3, thereby causing a bulge to form in a partial area of ​​the flexible display panel 1; Figure 5As shown, the second magnetic structure 3 can also apply an attractive force to the first magnetic structure 2, so that the first magnetic structure 2 is close to the second magnetic structure 3, thereby forming a depression in a part of the flexible display panel 1; of course, by controlling the force between the first magnetic structure 2 and the second magnetic structure 3, the flexible display panel 1 can also be in a planar display state. Among them, at least one of the first magnetic structure 2 and the second magnetic structure 3 is an electromagnetic structure. In this way, the force between the first magnetic structure 2 and the second magnetic structure 3 can be controlled by controlling the magnitude of the current, and even the force between the first magnetic structure 2 and the second magnetic structure 3 can be cancelled. The second magnetic structure 3 may include a second supporting layer 301 and a second magnetic body 302 disposed on the second supporting layer 301. The second magnetic body 302 may include the above-mentioned heat dissipation material, which solves the problem that the general heat sink cannot be deformed and cannot be integrated in the 3D dynamic display module. The second magnetic body 302 may be disposed on the side of the second supporting layer 301 close to the flexible display panel 1. The material of the second supporting layer 301 may include at least one of a polymer, glass, and a metal. The polymer may be a polymer with a relatively high modulus and certain support, such as PMMA, PC, PI, etc. The metal may be Cu, Al, etc. The thickness of the second support layer 301 may be 30 μm-500 μm, such as 30 μm, 200 μm, 360 μm, 500 μm, etc. Taking the first magnetic body 202 being arranged on the entire surface area of ​​the first support layer 201 as an example, the second magnetic body 302 may also be arranged on the entire surface area of ​​the second support layer 301. Taking the first magnetic body 202 being arranged on the first support area of ​​the first support layer 201 as an example, the second magnetic body 302 may be arranged in the area of ​​the second support layer 301 corresponding to the first support area.

[0045] One of the first magnetic body 202 and the second magnetic body 302 is a permanent magnet, and the other is an electromagnet. For example, the first magnetic body 202 is a permanent magnet, and the second magnetic body 302 is an electromagnet. Of course, the first magnetic body 202 can be an electromagnet, and the second magnetic body 302 can be a permanent magnet. The two magnetic poles of the permanent magnet are distributed along the thickness direction of the flexible display panel 1. In the thickness direction of the flexible display panel 1, the length of the permanent magnet can be 30μm-150μm, such as 30μm, 50μm, 80μm, 150μm, etc. In the direction perpendicular to the thickness direction of the flexible display panel 1, the distance between two adjacent permanent magnets can be 0.2mm-20mm, such as 0.2mm, 5mm, 13mm, 20mm, etc. In the direction perpendicular to the thickness direction of the flexible display panel 1, the length of the permanent magnet can be 0.1mm-10mm, such as 0.1mm, 3mm, 7mm, 10mm, etc. The orthographic projection of the permanent magnet on the flexible display panel 1 is a polygon such as a triangle, a quadrilateral, a hexagon, or a circle. Taking the orthographic projection of the permanent magnet as a quadrilateral as an example, the orthographic projection of the permanent magnet is a square; in the direction perpendicular to the thickness direction of the flexible display panel 1, the distance between two adjacent permanent magnets refers to the distance between the sides of two adjacent squares; in the direction perpendicular to the thickness direction of the flexible display panel 1, the length of the permanent magnet refers to the side length of the square; the four corners of the quadrilateral may also have rounded corners.

[0046] The number of the permanent magnets can be multiple, and the multiple permanent magnets are evenly distributed in a direction perpendicular to the thickness direction of the flexible display panel 1. Figure 7 As shown, taking the first magnetic body 202 as a permanent magnet as an example, multiple permanent magnets are evenly distributed, that is to say, multiple first magnetic bodies 202 are evenly distributed on the first supporting layer 201. The material of the permanent magnet can be a magnetic metal such as iron, cobalt, nickel, and of course, it can also be an alloy material of iron, cobalt, and nickel. The permanent magnet can not only move under the action of magnetic force to realize 3D dynamic display, but also can play the role of heat dissipation, shading, etc., solving the problem that general heat sinks cannot be deformed and cannot be integrated in 3D dynamic display modules. The permanent magnet can be prepared by vacuum sputtering and then etching, and of course, it can also be formed by rolling etching and then transfer.

[0047] like Figure 4As shown, the electromagnet includes a coil 3021, and the axis of the coil 3021 can be parallel to the thickness direction of the flexible display panel 1. Of course, the electromagnet can also include an iron core 3022 passing through the coil 3021. The coil 3021 of each electromagnet can be connected to an external circuit to receive an electrical signal. The number of the electromagnets can be multiple, and the multiple electromagnets are evenly distributed in a direction perpendicular to the thickness direction of the flexible display panel 1. Taking the second magnetic body 302 as an electromagnet as an example, the multiple electromagnets are evenly distributed, that is, the multiple second magnetic bodies 302 are evenly distributed on the second supporting layer 301. In addition, the multiple electromagnets can constitute a plurality of electromagnetic groups, and each electromagnetic group can include one or more electromagnets. For an electromagnetic group including a plurality of electromagnets, the directions of the magnetic fields generated by the multiple electromagnets in the electromagnetic group are the same. As Figure 6 As shown, for different electromagnetic groups, the directions of the magnetic fields generated by different electromagnetic groups can be different, so that the second electromagnetic structure can not only apply a repulsive force to the first electromagnetic structure, but also apply an attractive force to the first electromagnetic structure, thereby causing a partial area of ​​the flexible display panel 1 to bulge outward and another partial area of ​​the flexible display panel 1 to be recessed inward.

[0048] like Figures 1 to 3 As shown, the display module of the embodiment of the present disclosure may also include a spacer layer 4. The spacer layer 4 may be located between the first magnetic structure 2 and the second magnetic structure 3. Taking the example that the first magnetic body 202 is arranged on the side of the first support layer 201 facing away from the flexible display panel 1 and the second magnetic body 302 is arranged on the side of the second support layer 301 facing the flexible display panel 1, the second magnetic body 302 may be fixed between the second support layer 301 and the spacer layer 4; the first magnetic body 202 can contact the spacer layer 4 under the gravitational force of the second magnetic structure 3, and when the gravitational force is large, the first magnetic structure 2 can squeeze the spacer layer 4 to form a depression on the spacer layer 4; at the same time, the first magnetic body 202 can be separated from the spacer layer 4 under the repulsive force of the second magnetic structure 3. The material of the spacer layer 4 may be a soft polymer material or a glue material that has no effect on magnetic force, such as PO, TPU, PET, acrylic, silicone, etc. The thickness of the spacer layer 4 may be 10 μm-150 μm, for example, 10 μm, 50 μm, 80 μm, 150 μm, etc.

[0049] The embodiment of the present disclosure also provides a display method of a display module. The display method can adopt the display module described in any of the above embodiments. The display method may include: applying a repulsive force to the first magnetic structure 2 through the second magnetic structure 3, so that the flexible display panel 1 bulges outward; or, applying an attractive force to the first magnetic structure 2 through the second magnetic structure 3, so that the flexible display panel 1 is concave. The display module used in the display method of the embodiment of the present disclosure is the same as the display module in the embodiment of the above display module, so it has the same beneficial effects, and the present disclosure will not repeat them here.

[0050] The embodiment of the present disclosure also provides a display device. The display device may include the display module described in any of the above embodiments. The display device may be a television, a mobile phone, etc. The display module included in the display device of the embodiment of the present disclosure is the same as the display module in the embodiment of the above display module, so it has the same beneficial effects, and the present disclosure will not repeat them here.

[0051] The above is only a preferred embodiment of the present disclosure and does not limit the present disclosure in any form. Although the present disclosure has been disclosed as a preferred embodiment as above, it is not used to limit the present disclosure. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure are still within the scope of the technical solution of the present disclosure.

Claims

1. A display module, characterized in that: include: Flexible display panel; the flexible display panel comprises a substrate, an array substrate and a light-emitting layer; a first magnetic structure fixed to the backlight side of the flexible display panel; the first magnetic structure comprises a first supporting layer and a first magnetic body arranged on the first supporting layer, the first supporting layer is a flexible material; the first magnetic body is arranged on a side of the first supporting layer away from the flexible display panel; a second magnetic structure, located on a side of the first magnetic structure away from the flexible display panel, the second magnetic structure being capable of applying an attractive force and / or a repulsive force to the first magnetic structure; the second magnetic structure comprising a second supporting layer and a second magnetic body disposed on the second supporting layer; the second magnetic body being disposed on a side of the second supporting layer close to the flexible display panel; a spacer layer, located between the first magnetic structure and the second magnetic structure; the second magnetic body is fixed between the second supporting layer and the spacer layer; the first magnetic body can contact the spacer layer under the attraction of the second magnetic structure, and can be separated from the spacer layer under the repulsion of the second magnetic structure; Wherein, at least one of the first magnetic structure and the second magnetic structure is an electromagnetic structure.

2. The display module according to claim 1, characterized in that: One of the first magnetic body and the second magnetic body is a permanent magnet, and the other is an electromagnet; two magnetic poles of the permanent magnet are distributed along the thickness direction of the flexible display panel, and the electromagnet includes a coil, and the axis of the coil is parallel to the thickness direction of the flexible display panel.

3. The display module according to claim 2, characterized in that: The orthographic projection of the permanent magnet on the flexible display panel is a polygon or a circle.

4. The display module according to claim 2, characterized in that: There are multiple permanent magnets and multiple electromagnets, and in a direction perpendicular to the thickness direction of the flexible display panel, the multiple permanent magnets and the multiple electromagnets are evenly distributed.

5. The display module according to claim 2, characterized in that: There are multiple permanent magnets and multiple electromagnets, and the directions of the magnetic fields generated by two of the multiple electromagnets are the same or opposite.

6. The display module according to claim 1, characterized in that: A cover plate is provided on a side of the flexible display panel away from the first magnetic structure, and a material of the cover plate is a material with a variable modulus.

7. The display module according to claim 1, characterized in that: The material of the first magnetic body and / or the second magnetic body includes a heat dissipation material.

8. A display method of a display module, characterized in that: The display method adopts the display module according to any one of claims 1 to 7, and the display method comprises: Applying a repulsive force to the first magnetic structure through the second magnetic structure, so that the flexible display panel bulges outward; or An attractive force is applied to the first magnetic structure through the second magnetic structure, so that the flexible display panel is recessed.

9. A display device, characterized in that: A display module comprising any one of claims 1 to 7.

Images