Display device

Abstract

The utility model provides a display device. The display device comprises a display panel, a first substrate, a second substrate and a visual angle conversion layer. The visual angle conversion layer is arranged between the first substrate and the second substrate, the visual angle conversion layer at least comprises a liquid crystal conversion unit, and when the display device works, the section shape of the liquid crystal conversion unit changes according to the requirements of different display modes. According to the embodiment of the utility model, the visual angle conversion layer is arranged, and the cross section shape of the liquid crystal conversion unit in the visual angle conversion layer can be changed according to requirements, so that the light path is changed through the liquid crystal conversion unit, the display device can be freely switched between a 2D display mode and a 3D display mode, and the performance of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display panels, and in particular to a display device. Background Art

[0002] With the continuous upgrading of electronic products, people have put forward higher requirements on the quality and performance of electronic glasses to enhance the user experience.

[0003] Traditional display panels are generally 2D type display panels, and users usually only have a flat visual experience when observing. As display panels develop in a diversified manner, naked-eye 3D has gradually become one of the new research and development and productization directions. Compared with traditional 2D display panels, 3D display panels can bring users a three-dimensional and richer visual experience, and even make users feel immersive, thereby enhancing the display and human-computer interaction performance of the display panel. However, in the prior art, when preparing the above-mentioned 3D display panel, although a higher 3D display requirement can be met, when the display panel needs to display a picture or scene for a non-3D scene, if the 3D display mode is still used for display without mode switching, the power consumption of the product will be greatly increased, and with long-term use, the optical brightness of the panel will be greatly lost. Therefore, when the 3D display panel prepared in the prior art displays the picture, it cannot be switched freely between the 2D display mode and the 3D display mode in a timely and effective manner, so that the display mode of the display panel cannot be effectively adjusted, which is not conducive to further improving the comprehensive performance of the panel.

[0004] In summary, in the prior art, when preparing a 3D display panel, the 3D display panel cannot be freely switched between the 2D display mode and the 3D display mode in a timely manner according to actual needs to improve the panel performance. Utility Model Content

[0005] The embodiment of the utility model provides a display device to effectively improve the problem that the existing display panel cannot freely switch between the 2D display mode and the 3D display mode according to the demand when displaying the picture.

[0006] In order to solve the above technical problems, a first aspect of an embodiment of the utility model provides a display device, comprising at least:

[0007] Display panel;

[0008] A first substrate, disposed on a light emitting side of the display panel;

[0009] A second substrate, disposed on a side of the first substrate away from the display panel;

[0010] A viewing angle conversion layer is arranged between the first substrate and the second substrate, and the viewing angle conversion layer at least includes liquid crystal conversion units arranged in an array. In a 2D display mode, a cross-section of the liquid crystal conversion unit is configured as a rectangular cross-section, and in a 3D display mode, a cross-section of the liquid crystal conversion unit is configured as an arc cross-section.

[0011] According to an embodiment of the present invention, the viewing angle conversion layer further includes a flexible layer disposed on the first substrate, and the liquid crystal conversion units are arranged at intervals in the flexible layer.

[0012] According to an embodiment of the present invention, the height of the flexible layer is greater than the height of the liquid crystal conversion unit, and a plurality of the liquid crystal conversion units are arranged at equal intervals.

[0013] According to an embodiment of the present invention, the distance between two adjacent liquid crystal conversion units is set to 1um-5um, and the height of the liquid crystal conversion unit is set to 20um-120um.

[0014] According to an embodiment of the utility model, the liquid crystal conversion unit includes a liquid crystal and an outer envelope layer wrapping the liquid crystal;

[0015] Wherein, the outer envelope film layer is configured as a memory material film layer with light-transmitting properties.

[0016] According to an embodiment of the present invention, the deflection angle of the liquid crystal is set to 0° to 5°.

[0017] According to an embodiment of the utility model, in the 2D display mode, in the emitting direction of the light, the width of the rectangular cross-section corresponding to the liquid crystal conversion unit is set to 60um~120um, and in the 3D display mode, in the emitting direction of the light, the curvature radius of the arc cross-section corresponding to the liquid crystal conversion unit is set to 60um~150um.

[0018] According to an embodiment of the present invention, the display module further includes an electrode, the electrode is disposed on the first substrate, and the electrode is disposed corresponding to the liquid crystal conversion unit.

[0019] According to an embodiment of the present invention, the electrode is correspondingly disposed at an edge position of the liquid crystal conversion unit, and the electrode includes a first electrode and a second electrode, and the first electrode and the second electrode are respectively disposed at two sides of the liquid crystal conversion unit.

[0020] According to an embodiment of the present invention, the thickness of the outer coating layer at a side away from the first substrate is less than or equal to the thickness of the outer coating layer at a side close to the first substrate, and the thickness of the outer coating layer is set to 1um to 5um.

[0021] Beneficial effects of the embodiments of the utility model: Compared with the prior art, the embodiments of the utility model provide a display device. The display device includes at least a first substrate, a second substrate and a viewing angle conversion layer. And the viewing angle conversion layer includes at least a liquid crystal conversion unit. When the display device is working, the cross-sectional shape of the liquid crystal conversion unit changes according to the requirements of different display modes. In the embodiments of the utility model, a viewing angle conversion layer is set, and the cross-sectional shape of the liquid crystal conversion unit in the viewing angle conversion layer is converted from a rectangular cross-sectional shape to an arc cross-sectional shape in the light emitting direction in the 2D display mode and the 3D display mode, and then the liquid crystal conversion unit has different effects on the light, thereby ensuring that the display device can be freely switched between the 2D and 3D display modes, thereby improving the performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a display device provided in an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the film structure of a display device provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a display device provided in an embodiment of the present utility model in a 3D display mode;

[0026] Figure 4 FIG. 1 is a schematic diagram of light corresponding to the display device in the 3D display mode according to the embodiment of the present invention. DETAILED DESCRIPTION

[0027] In the following detailed description, only certain embodiments of the present invention are shown and described simply by way of illustration. As will be appreciated by those skilled in the art, the embodiments described herein may be modified in various ways without departing from the spirit or scope of the present invention.

[0028] In the drawings, the thickness of layers, films, plates, regions, etc. may be exaggerated for clarity and for better understanding and ease of description. In addition, unless explicitly described to the contrary, the word "include" and its variations like "include" or "contain" will be understood to imply the inclusion of the discussed elements, but not necessarily exclude other elements. Further, in the specification, the word "on..." refers to placement above or below an object part, and does not necessarily mean placement on the upper side of the object part based on the direction of gravity.

[0029] It will be understood that although the terms "first", "second", etc. may be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another component.

[0030] The utility model provides a display module and a display device in an embodiment, which can change the film structure of the module and set a viewing angle conversion layer, so that the device can be freely switched between 2D and 3D display modes, thereby effectively improving the comprehensive performance of the device.

[0031] like Figure 1 As shown, Figure 1 The structure diagram of a display device provided in an embodiment of the utility model includes a display panel 101 , an adhesive 102 , a first substrate 103 , a frame glue 104 , a viewing angle conversion layer 11 and a second substrate 106 .

[0032] In the utility model, the display panel 101 is configured to display an image, and the purpose of picture display is achieved through the display panel 101. When setting the film layer structure corresponding to the display panel 101, the display panel 101 can be set to different types of display panels as needed. In one embodiment, the display panel can be set to a liquid crystal display panel (Liquid crystal display, LCD). Specifically, the display panel 101 can at least include a backlight assembly, an array substrate, and a liquid crystal layer. When the display panel is working normally, an electric field is formed between the array substrate and the substrate on the opposite side. The liquid crystal molecules in the liquid crystal layer are deflected at an angle under the action of the corresponding electric field, thereby refracting the light of the backlight assembly to display the corresponding picture. In another embodiment of the present application, the display panel 101 can also be set to an organic light-emitting diode (OLED) display panel for self-luminous display. Specifically, the OLED display panel may include an array substrate, a light-emitting layer arranged on the array substrate, and an encapsulation layer. The light-emitting layer may include a plurality of pixel units, and the encapsulation layer is used for sealing. When the OLED display panel is working, the pixel unit emits light to realize the picture display of the display panel. In the embodiment of the present application, the above two different types of display panels 101 are only examples, and any display panel that can emit light or has a display function is within the protection scope of the present application.

[0033] Furthermore, the adhesive 102 is disposed on the display panel 101, and the first substrate 103 is disposed on a side of the adhesive 102 away from the display panel 101. For example, the first substrate 103 is disposed on a light-emitting side of the display panel 101, and the bonding effect of the two film layers is achieved by the adhesive 102. The adhesive 102 can be set to a commonly used optical adhesive with high transparency, thereby avoiding the attenuation problem of the adhesive 102 on the outgoing and incident light, and improving its display effect.

[0034] Furthermore, the second substrate 106 is arranged opposite to the first substrate 103 and forms a box. In the embodiment of the utility model, when the first substrate 103 and the second substrate 106 are arranged, the two opposite substrates can be set to different materials according to the requirements. For example, in the following embodiment, the first substrate 103 and the second substrate 106 are both set to glass substrates, which have a high light transmittance, thereby avoiding the influence of different substrates on the light extraction efficiency of the device, thereby ensuring that the device has a high display effect. Other types of substrate materials are all within the protection scope of the utility model.

[0035] In the embodiment of the utility model, the viewing angle conversion layer 11 is disposed between the first substrate 103 and the second substrate 106. Optionally, a side of the viewing angle conversion layer 11 away from the first substrate 103 can be directly attached to the lower surface of the second substrate 106, thereby fixing the viewing angle conversion layer 11.

[0036] At the same time, a sealant 104 is also provided between the first substrate 103 and the second substrate 106. The sealant 104 can be provided at the edges of the first substrate 103 and the second substrate 106, such as being provided around the edges of each substrate, so as to achieve the sealing of the first substrate 103 and the second substrate 106 on the one hand, and on the other hand, the two substrates can be supported, so as to protect and stabilize the viewing angle conversion layer between the substrates. In the embodiment of the utility model, the specific types of the first substrate 103 and the second substrate 106 are not limited, and the first substrate 103 and the second substrate 106 can be configured as film layers with different functions according to the use requirements. In the following examples, the first substrate and the second substrate are both configured as glass layers.

[0037] Furthermore, when setting the viewing angle conversion layer 11, one side surface of the viewing angle conversion layer 11 can directly abut against the lower surface of the second substrate 106, and the other side surface of the viewing angle conversion layer 11 can at least partially contact the upper surface of the first substrate 103.

[0038] See Figure 1 In the film layer structure, in the embodiment of the utility model, when the viewing angle conversion layer 11 is set, it includes a flexible layer 107 and a liquid crystal conversion unit 108.

[0039] Specifically, the liquid crystal conversion unit 108 is disposed in the flexible layer 107, and the liquid crystal conversion unit 108 is wrapped by the flexible layer 107. Specifically, the liquid crystal conversion unit 108 can be arranged in an array in the flexible layer 107. In the following embodiments, the liquid crystal conversion units 108 are arranged in the flexible layer 107 at equal intervals, and when each liquid crystal conversion unit 108 is arranged, the liquid crystal conversion unit 108 can be arranged corresponding to the pixel unit in the display panel, so as to ensure that the light in the pixel unit can be completely acted upon by the liquid crystal conversion unit 108.

[0040] At the same time, the height of the liquid crystal conversion unit 108 is less than the height of the flexible layer 107, so as to ensure that the liquid crystal conversion unit 108 will not interfere with the substrate when deformed, thereby improving the deformation effect of the liquid crystal conversion unit 108. Optionally, when multiple liquid crystal conversion units 108 are arranged at equal intervals, the spacing between two adjacent liquid crystal conversion units 108 is set to 1um to 5um, and each liquid crystal conversion unit 108 is set at an equal height, and its height can be set to 20um to 150um. Optionally, the spacing between the liquid crystal conversion units 108 is set to 1um, 3.5um, and the height of the liquid crystal conversion unit 108 is set to 30um, 40um, and 80um.

[0041] In the embodiment of the utility model, the above-mentioned spacing value and height value can be adjusted, and when the two form different combinations, different viewing effects can be achieved. For example, when the spacing between the two is set to 1.5um and the height of the liquid crystal conversion unit 108 is set to 35um, a larger viewing angle can be obtained in the 3D display mode, thereby improving its display and use effects. Alternatively, differentiated settings can be made according to the needs of different products to increase the universality of the module and the device.

[0042] Furthermore, in an embodiment of the utility model, when the display panel 101 works normally and displays the picture, different display modes are realized through the first substrate 103, the viewing angle conversion layer 11 and the second substrate 106 in the light emission direction of the display panel. Specifically, the liquid crystal conversion unit 108 in the visual conversion layer 11 is configured as a rectangular cross-section in the 2D display mode, and the width of the rectangular cross-section is set to 60um to 150um, such as 120um or other parameters. And when switching from the 2D display mode to the 3D display mode, the cross-sectional shape of the liquid crystal conversion unit 108 is configured as an arc cross-section. And the curvature radius of the corresponding arc cross-section of the liquid crystal conversion unit 108 is set to 60um to 150um. Thereby ensuring that the module still has a high display effect in different display modes.

[0043] In the embodiment of the utility model, when the flexible layer 107 is provided, the flexible layer 107 is provided as a flexible buffer material, and optionally, the material of the flexible layer 107 may include a gel material, a polyurethane gel material, etc. And the liquid crystal conversion unit 108 can be deformed in the flexible layer 107, so as to be configured into a corresponding cross-sectional shape in different display modes of 2D and 3D, thereby ensuring the display effects of different display modes.

[0044] Furthermore, in an embodiment of the present invention, when setting the liquid crystal conversion unit 108 in the flexible layer 107, a groove can be first set at a corresponding position in the flexible layer 107, and then the liquid crystal conversion unit 108 is filled into the groove, thereby forming the viewing angle conversion layer 11 in the present invention.

[0045] In the embodiment of the utility model, the liquid crystal conversion unit 108 is provided to further include a liquid crystal 109 and an outer coating layer 18. The liquid crystal 109 is provided in the outer coating layer 18, and the liquid crystal 109 provided in the utility model is wrapped by the outer coating layer 18. When the display device is in different display modes, the outer coating layer 18 can change its shape according to the force, so that the shape of the corresponding liquid crystal conversion unit changes, thereby ensuring the normal display function of different modes.

[0046] Furthermore, the material of the outer film layer 18 may include a memory material film layer with light-transmitting properties. Specifically, it may include shape memory alloy Ti-Ni or other alloy materials with shape memory function, and shape memory polymer materials, such as acrylic acid, polyurethane, epoxy resin and other polymer materials with memory function. The outer film layer 18 provided in the utility model is formed by using the above materials.

[0047] In the embodiment of the utility model, the film thickness of the outer film layer 18 can be set to 1um-5um. Optionally, the film thickness of the outer film layer 18 is set to 1um, 3um. Or it can be set to an outer film layer of other thicknesses according to product requirements. At the same time, in the utility model, the outer film layer will deform after being subjected to force. In order to improve its deformation effect, the film thickness of the outer film layer 18 on the side away from the first substrate 103 is less than or equal to the film thickness on the side close to the first substrate 106. In this way, during the deformation process, the deformation degree of the outer film layer on the side away from the first substrate 103 is larger, and the thickness of the outer film layer 18 in this area is reduced, thereby improving its deformation effect, and ensuring the deformation sensitivity of the outer film layer in the utility model, thereby improving the mode switching effect.

[0048] In the embodiment of the utility model, the outer film layer 18 can be deformed under the action of external force, thereby obtaining different light control effects. Specifically, the outer film layer 18 can change its shape under the action of electric field, electromagnetic field, thermal force and other forces. When under the action of electric field force, the distribution of the electric field in the electric field force is controlled to regulate the change of its shape. When under the action of thermal force, the temperature of the liquid crystal conversion unit is changed to achieve control of the shape of the liquid crystal conversion unit.

[0049] Furthermore, when the liquid crystal 109 is set in the outer film layer 18, the pretilt angle of the liquid crystal 109 can be set to 0° to 5°. Optionally, the pretilt angle is set to 0° or 1.5°. The pretilt angle of the liquid crystal 109 is thereby controlled to ensure control of light. In an embodiment of the utility model, the pretilt angle of the liquid crystal 109 can be limited. When light passes through the liquid crystal 109 with different pretilt angles, outgoing light rays of different angles are formed. When working in 2D display mode and 3D display mode, outgoing light rays of different angles can correspond to different display effects, thereby meeting the different usage requirements of different users.

[0050] In the embodiment of the utility model, Figure 2 As shown, Figure 2 Schematic diagram of the film structure of the display device provided in the embodiment of the utility model. Figure 1 In the film layer structure of the present invention, in the embodiment of the utility model, the shape of the liquid crystal conversion unit is changed by the action of the electric field force.

[0051] At this time, the display device further includes a driving circuit layer 120 and an electrode 105. The driving circuit layer 120 is disposed on the first substrate 103, and the electrode 105 is disposed on the driving circuit layer 120. And the electrode 105 is disposed corresponding to the liquid crystal conversion unit 108. Specifically, the electrode 105 may include a first electrode 1051 and a second electrode 1052. Specifically, the electrode 105 is disposed correspondingly at the edge position of the liquid crystal conversion unit 108. For example, the first electrode 1051 is disposed at the left edge of each of the liquid crystal conversion units 108, and the second electrode 1052 is disposed at the right edge of each of the liquid crystal conversion units 108. In this way, the driving circuit layer 120 can provide a control signal to the corresponding electrode, and the shape of the outer envelope layer 18 of the liquid crystal conversion unit 108 between the two electrodes can be changed through the joint action of the first electrode 1051 and the second electrode 1052.

[0052] Furthermore, in the embodiment of the utility model, the driving circuit layer 120 can not only provide corresponding control signals to different electrodes, thereby forming a specific electric field between the first electrode 1051 and the second electrode 1052, but also the driving circuit layer 120 can realize thermal regulation, such as heating different areas to achieve different temperatures. When the outer film layer 18 is affected by heat, its shape will also change.

[0053] For details, see Figure 1In the film structure, when the display panel is in the conventional 2D display mode, the first electrode 1051 and the second electrode 1052 do not apply voltage, so that no electric field force is formed between the first electrode 1051 and the second electrode 1052, and the outer film layer 18 maintains a rectangular cross section. At this time, when the light of the bottom display panel passes through, in the direction of light emission, since the cross section of the liquid crystal conversion unit is a rectangular cross section, the side away from the display panel is a horizontal plane, and the corresponding pre-tilt angle of the liquid crystal is set to 0°, most of the light can directly pass through the liquid crystal 109 and continue to be emitted from the upper surface of the liquid crystal conversion unit, see Figure 2 In the 2D display mode, the light is emitted vertically from the display module, thereby ensuring the display effect of the display panel in the 2D display mode. In the direction of light emission, the upper surface of the outer coating layer 18 is a plane, and the side surface is a vertical surface, so that the side surface will not affect the emitted light, and the light can be emitted directly from the upper surface, thereby achieving a higher light extraction rate and improving the display effect of the 2D display mode.

[0054] like Figure 3 As shown, Figure 3 This is a schematic diagram of the display module provided in the embodiment of the present utility model in 3D display mode. Figure 1-2 In the film layer structure, in the embodiment of the utility model, when the display device needs to switch from the 2D display mode to the 3D display mode, a voltage is applied to the first electrode 1051 and the second electrode 1052. Under the action of the voltage, the outer film layer 18 is affected by the electric field force, thereby undergoing shape deformation.

[0055] Specifically, in the embodiment of the utility model, the voltage applied to the first electrode and the second electrode is 3V to 12V. Optionally, a voltage of 6V is applied to form an electric field force between each liquid crystal conversion unit, and the liquid crystal conversion unit is deformed from a rectangular shape to a circular arc cross section. Among them, when the cross-sectional shape of the liquid crystal conversion unit 108 is a rectangular cross section, its corresponding structure is a cube or a rectangular parallelepiped structure, and when the liquid crystal conversion unit 108 is deformed into a circular arc cross section, its corresponding structure is an ellipsoid, a hemisphere or other spherical structures. In this way, different propagation effects of light can be achieved by changing the shape of the outer contour cross section.

[0056] like Figure 4 As shown, Figure 4 FIG. 1 is a schematic diagram of light corresponding to the display device in the 3D display mode according to the embodiment of the utility model. Figure 1-3 In the embodiment of the present invention, when the display device switches from the 2D display mode to the 3D display mode, the cross-sectional shape of the liquid crystal conversion unit 108 is also changed from a rectangular cross-sectional shape to an arc cross-sectional shape. When the light from the bottom display panel continues to propagate, the light will gather to a specific area after the combined effect of the arc cross-sectional shape and the liquid crystal. Figure 4 In the embodiment of the utility model, since a viewing angle conversion layer is separately provided, the viewing angle conversion layer can be adjusted in real time according to the demand when the device is working, thereby avoiding the problem of the traditional design that the 3D display device is turned on all the time when working, and the technical problem of being unable to realize the free switching between 2D and 3D at any time.

[0057] In an embodiment of the utility model, the viewing angle conversion layer is arranged between the first substrate and the second substrate, and a liquid crystal conversion unit is arranged in the viewing angle conversion layer. When different display modes are required, force can be directly provided to the liquid crystal conversion unit, thereby driving the liquid crystal conversion unit to deform. When the light in the panel passes through the liquid crystal conversion units of different shapes, the light will form different propagation effects, thereby achieving different display effects of 2D and 3D.

[0058] In the embodiment of the utility model, the above-mentioned film layer structure is simple, and when setting and forming the corresponding display device, the first substrate, the viewing angle conversion layer and the second substrate can be directly combined and formed separately, and then the combined structure can be pasted on other devices that need to switch modes, so that other devices or devices can also achieve 2D and 3D display effects.

[0059] Among them, the display device provided in the embodiment of the utility model can be any product or component with 3D display requirements, anti-peeping performance or other functions, such as a mobile phone, a computer, an electronic paper, a display, wearable glasses, etc., and its specific type is not limited.

[0060] In summary, the display device provided by the embodiment of the utility model is introduced in detail above. The principle and implementation mode of the utility model are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the utility model. Although the utility model is disclosed as above in the preferred embodiments, the above preferred embodiments are not used to limit the utility model. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model is based on the scope defined by the claims.

Claims

1. A display device, characterized in that: include: Display panel, A first substrate, disposed on a light emitting side of the display panel; A second substrate is disposed on a side of the first substrate away from the display panel; and A viewing angle conversion layer is arranged between the first substrate and the second substrate, and the viewing angle conversion layer at least includes liquid crystal conversion units arranged in an array. In a 2D display mode, a cross-section of the liquid crystal conversion unit is configured as a rectangular cross-section, and in a 3D display mode, a cross-section of the liquid crystal conversion unit is configured as an arc cross-section.

2. The display device according to claim 1, characterized in that The viewing angle conversion layer further includes a flexible layer disposed on the first substrate, wherein an array of grooves is formed on the side of the flexible layer facing the liquid crystal conversion unit, and the liquid crystal conversion unit is correspondingly disposed in the grooves of the flexible layer.

3. The display device according to claim 2, characterized in that: The height of the flexible layer is greater than the height of the liquid crystal conversion unit, and a plurality of the liquid crystal conversion units are arranged at equal intervals.

4. The display device according to claim 3, characterized in that: The distance between two adjacent liquid crystal conversion units is set to 1um-5um, and the height of the liquid crystal conversion unit is set to 20um-120um.

5. The display device according to claim 2, characterized in that: The liquid crystal conversion unit includes a liquid crystal and an outer envelope layer wrapping the liquid crystal, and the outer envelope layer and the liquid crystal conversion unit are both located in the groove of the flexible layer; Wherein, the outer envelope film layer is configured as a memory material film layer with light-transmitting properties.

6. The display device according to claim 5, characterized in that: The pre-tilt angle of the liquid crystal is set to 0° to 5°.

7. The display device according to claim 5, characterized in that: The thickness of the outer coating layer at a side away from the first substrate is less than or equal to the thickness of the outer coating layer at a side close to the first substrate, and the thickness of the outer coating layer is set to 1um to 5um.

8. The display device according to claim 1, characterized in that: In the 2D display mode, in the emitting direction of the light, the width of the rectangular cross-section corresponding to the liquid crystal conversion unit is set to 60um~120um, and in the 3D display mode, in the emitting direction of the light, the curvature radius of the arc cross-section corresponding to the liquid crystal conversion unit is set to 60um~150um.

9. The display device according to claim 1, characterized in that: The display device further includes an electrode, wherein the electrode is disposed on the first substrate and the electrode is disposed corresponding to the liquid crystal conversion unit.

10. The display device according to claim 9, characterized in that: The electrode is correspondingly arranged at the edge position of the liquid crystal conversion unit, and the electrode includes a first electrode and a second electrode, and the first electrode and the second electrode are respectively arranged at two sides of the liquid crystal conversion unit.

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