Display device and electronic equipment

Abstract

The application provides a display device and an electronic equipment, and relates to the display field.The display device comprises a first substrate, a second substrate, a liquid crystal layer and a support column; the first substrate comprises a first electrode layer; the second substrate comprises a second electrode layer; the liquid crystal layer is arranged between the first substrate and the second substrate; the support column is arranged on the periphery of a pixel unit, and the support column is connected with the first electrode layer and the second electrode layer; the support column comprises a third electrode layer, black capsules and white capsules with different electrical properties; wherein, when the display device provides a target voltage, the second electrode layer drives the third electrode layer of each support column to form a corresponding electric field, so as to drive the black capsules and the white capsules to move, so that the display device is switched to different display modes.The application can conveniently and quickly realize the narrow viewing angle mode of the display device, and the implementation mode is relatively simple and low in cost.

Description

Technical Field

[0001] This application relates to the field of displays, and more particularly to a display device and an electronic device. Background Technology

[0002] For display devices, such as liquid crystal displays (LCDs) or electronic paper (e-paper) displays, people can generally see a complete and undistorted image when viewing the device from different directions. However, when it comes to personal privacy and important information, the use of display devices in some public places can be inconvenient. For example, when waiting for a train at a station, people next to or behind the user are very likely to see the content on the screen of the user's portable electronic device.

[0003] Therefore, in certain scenarios, to achieve better privacy protection, the display device needs to switch to a narrow viewing angle mode to reduce the viewing angle and ensure that the screen content cannot be seen by others. However, while it is possible to achieve a narrow viewing angle mode in related technologies, these technologies generally achieve this by controlling the rotation of liquid crystal molecules, which is a complex and costly approach. Summary of the Invention

[0004] The main objective of this application is to provide a display device and electronic device that can conveniently and quickly implement a narrow viewing angle mode for the display device, and the implementation method is relatively simple and low cost.

[0005] In a first aspect, this application provides a display device, the display device comprising a first substrate, a second substrate, a liquid crystal layer, and a support pillar; The first substrate includes a first electrode layer; The second substrate includes a second electrode layer disposed opposite to the first electrode layer, and the second electrode layer includes a plurality of pixel units; The liquid crystal layer is disposed between the first substrate and the second substrate, and the liquid crystal layer includes a plurality of liquid crystal molecules; The support pillar is disposed on the periphery of the pixel unit and is connected to the first electrode layer and the second electrode layer. The support pillar is used to support the first substrate. The support pillar includes a third electrode layer and black capsules and white capsules with different electrical properties. The second electrode layer is used to drive the third electrode layer of each of the support columns to form a corresponding electric field when the display device provides a target voltage, so as to drive the black capsule and the white capsule to move, thereby switching the display device to different display modes.

[0006] Secondly, this application provides an electronic device, which includes a display device as described in any embodiment of this application.

[0007] This application provides a display device and an electronic device. The display device comprises a first substrate, a second substrate, a liquid crystal layer, and support pillars. The first substrate includes a first electrode layer. The second substrate includes a second electrode layer disposed opposite to the first electrode layer, and the second electrode layer includes multiple pixel units. The liquid crystal layer is disposed between the first substrate and the second substrate, and the liquid crystal layer includes multiple liquid crystal molecules. The support pillars are disposed around the pixel units and are connected to the first electrode layer and the second electrode layer. The support pillars support the first substrate and include a third electrode layer and black and white capsules with different electrical properties. The second electrode layer drives the third electrode layer of each support pillar to form a corresponding electric field when the display device provides a target voltage, thereby driving the black and white capsules to move, allowing the display device to switch to different display modes. The display device provided by this application, by adding black and white capsules within the support pillars and controlling their movement, conveniently and quickly realizes a narrow viewing angle mode and a normal viewing angle mode. The switching between the two display modes is reliable and convenient, and the implementation method is relatively simple and low-cost. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 A schematic diagram of the light path scene of a display device provided for related technologies; Figure 2 This is a cross-sectional structural diagram of a display device provided in an embodiment of this application; Figure 3 This is a top view of a display device provided in an embodiment of this application; Figure 4 A schematic diagram of the light path scene of a display device in narrow viewing angle mode, provided as an embodiment of this application; Figure 5 A schematic diagram of the light path scene of a display device in normal viewing mode, provided in an embodiment of this application; Figure 6 A schematic block diagram of the structure of an electronic device provided in an embodiment of this application; Figure label: 100. Display device; 10. First substrate; 11. First electrode layer; 20. Second substrate; 21. Second electrode layer; 30. Liquid crystal layer; 31. Liquid crystal molecules; 40. Support column; 41. Third electrode layer; 42. Black capsule; 43. White capsule; 44. Filling fluid; 50. Color filter layer; 51. First filter layer; 52. Second filter layer; 53. Third filter layer; 60. Black Matrix Layer; 200 pixel area; 1000. Electronic devices. Detailed Implementation

[0010] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0011] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content and operations / steps, nor does it necessarily have to be performed in the order described. For example, some operations / steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0012] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0013] It should be understood that, in order to clearly describe the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. For example, the first callback function and the second callback function are only used to distinguish different callback functions and do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" do not necessarily mean they must be different.

[0014] It should also be understood that the term "and / or" as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0015] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0016] like Figure 1 As shown, the display device provided by the related technology may include a top substrate A, a bottom substrate B, a liquid crystal layer C, and a support pillar D. The support pillar D is generally used to connect the top substrate A and the bottom substrate B, and to support the first substrate 10. Although the display device provided by the related technology can also realize a narrow viewing angle mode, the display device provided by the related technology generally achieves the narrow viewing angle mode by controlling the rotation of liquid crystal molecules C1 in the liquid crystal layer C through the bottom substrate B. This implementation method is more complex and costly.

[0017] To solve the above-mentioned technical problems, the display device provided in this application adds black capsules and white capsules inside the support column and controls the movement of the black capsules and white capsules, thereby conveniently and quickly realizing the narrow viewing angle mode and normal viewing angle mode of the display device. The switching between the two display modes is reliable and convenient, and the implementation method is relatively simple and low cost.

[0018] For example, the display device provided in this application can be a liquid crystal display (LCD) or other display devices. As long as it is necessary to switch between wide viewing angle mode and narrow viewing angle mode, it can be the display device provided in this application. No specific limitation is made here.

[0019] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of a display device provided in an embodiment of this application.

[0020] like Figure 2 As shown, the display device 100 includes a first substrate 10, a second substrate 20 and a liquid crystal layer 30; the first substrate 10 includes a first electrode layer 11; the second substrate 20 includes a second electrode layer 21 disposed opposite to the first electrode layer 11, and the second electrode layer 21 includes a plurality of pixel units 300.

[0021] like Figure 2 As shown, exemplarily, the side of the first substrate 10 facing away from the second substrate 20 can form the display surface of the display device 100. When the display device 100 is in a flat position, the first substrate 10 is generally disposed on the top of the display device 100, therefore the first substrate 10 can be referred to as the top substrate. The second substrate 20 is generally disposed on the bottom of the display device 100, and the second substrate 20 can be referred to as the bottom substrate. The second substrate 20 includes a second electrode layer 21 disposed opposite to the first electrode layer 11. The first electrode layer 11 is used to form an electric field together with the second electrode layer 21 during the display imaging process.

[0022] For example, the outermost layer of the first substrate 10 and the second substrate 20 may be a carrier such as glass or other acrylic material, used as a protective cover.

[0023] The liquid crystal layer 30 is disposed between the first electrode layer 11 and the second electrode layer 21, and the liquid crystal layer 30 includes a plurality of liquid crystal molecules 31.

[0024] For example, liquid crystal molecules 31 are a special material that exists between a liquid and a crystalline state, and are mainly used to control light refraction and display images. Specifically, the arrangement of liquid crystal molecules 31 is changed by stimulating them with an electric current, thereby controlling the transmission or reflection of light to form an image display effect. When an electric current passes through, the liquid crystal molecules 31 rearrange themselves, causing the light to be refracted or deflected, ultimately presenting images of different gray levels.

[0025] Liquid crystal molecules 31 can align under the influence of voltage to control their positional distribution within the liquid crystal layer 30, thereby forming different grayscale levels on the screen surface. Specifically, the first electrode layer 11 and the second electrode layer 21 jointly drive the liquid crystal molecules 31 within the liquid crystal layer 30 to align and display different images.

[0026] like Figure 3 As shown, the support post 40 is disposed on the periphery of the pixel unit 300, and the support post 40 is connected to the first electrode layer 11 and the second electrode layer 21. The support post 40 is used to support the first substrate 10. The support post 40 includes a third electrode layer 41 and black capsules 42 and white capsules 43 with different electrical properties.

[0027] Specifically, the support column 40 is disposed at the edge of the liquid crystal layer 30, and the two ends of the support column 40 are respectively connected to the first electrode layer 11 and the second electrode layer 21. By providing the support column 40, the compressive strength between the first electrode layer 11 and the second electrode layer 21 can be improved.

[0028] Specifically, the support pillars 40 are also disposed between multiple pixel units 300, and the support pillars 40 surrounding any pixel unit 300 form a sealed space for serving as a liquid crystal layer 30, the sealed space being filled with liquid crystal molecules 31.

[0029] For example, the support pillar 40 is disposed on the periphery of the pixel unit 300. By providing the support pillar 40, on the one hand, it can provide additional mechanical structural strength to the liquid crystal layer 30, prevent the first substrate 10 and the second substrate 20 from damaging the liquid crystal layer 30 during the bonding process, improve the production yield and product reliability. On the other hand, it can provide a more stable and regular accommodating space for the liquid crystal molecules 31, improve the control accuracy and stability of the control electric field, enhance the refresh efficiency and color gamut effect of the display device 100, and prevent color mixing and miscoloring.

[0030] Specifically, the support pillar 40 can be a photo spacer (PS) pillar. The support pillar 40 is a micro-pillar that is precisely designed inside the display device 100 and is distributed between the first substrate 10 and the second substrate 20.

[0031] For example, the support column 40 can control the gap (i.e. cell thickness) between the first substrate 10 and the second substrate 20, thereby ensuring that the thickness of the liquid crystal layer 30 is consistent and improving the situation where the display device 100 exhibits display blurring or Newton's rings phenomenon due to uneven pressure.

[0032] Specifically, the support column 40 includes a third electrode layer 41 and a filling liquid 44 disposed within the third electrode layer 41. The filling liquid 44 includes black capsules 42 and white capsules 43 with different electrical properties.

[0033] For example, the black capsule 42 and the white capsule 43 may have different electrical properties. For instance, the white capsule 43 may be negatively charged and the black capsule 42 may be positively charged; or the white capsule 43 may be positively charged and the black capsule 42 may be negatively charged. No specific limitation is made here.

[0034] Black capsule 42 and white capsule 43 can undergo electrophoresis under the influence of voltage to control the positional distribution of the two types of capsules within the space of the support column 40, thereby driving the black capsule 42 and white capsule 43 to move. Utilizing the principle of attraction between positive and negative charges, when the third electrode layer 41 is activated, the corresponding black capsule 42 or white capsule 43 will move to the corresponding position within the support column 40.

[0035] Specifically, the second electrode layer 21 is used to drive the third electrode layer 41 of each support column 40 to form a corresponding electric field when the display device 100 provides a target voltage, so as to drive the black capsule 42 and the white capsule 43 to move, so that the display device 100 switches to different display modes. The display modes may include narrow viewing angle mode, normal viewing angle mode and wide viewing angle mode, etc., which are not specifically limited here.

[0036] It should be noted that, under different voltages (first voltage or second voltage), the electric field formed by the third electrode layer 41 of each support column 40 may be the same or different. It can be set according to the actual situation, and no specific limitation is made here.

[0037] In this embodiment, when the display device 100 is in narrow viewing angle mode, the viewing angle of the display device 100 is at least less than 90°, such as 85°, 80°, 75°, 70°, etc., meaning that a user cannot see the screen content of the display device 100 when looking from 45° to the left or 45° to the right of the screen. When the display device 100 is in normal viewing angle mode, the viewing angle of the display device 100 can be less than or equal to 120°, such as 120°, 115°, 110°, 100°, etc., meaning that a user can still see the screen content of the display device 100 when looking from 60° to the left or 60° to the right of the screen.

[0038] Therefore, as Figure 4 and Figure 5 The display device 100 provided in this application embodiment adds a black capsule 42 and a white capsule 43 inside the support column 40 and controls the movement of the black capsule 42 and the white capsule 43, thereby conveniently and quickly realizing the narrow viewing angle mode and the normal viewing angle mode of the display device 100. The switching between the two display modes is reliable and convenient, and the implementation method is relatively simple and low cost.

[0039] like Figure 4 As shown, in some embodiments, the second electrode layer 21 is used to drive the third electrode layer 41 of each support column 40 to form a corresponding electric field when the display device 100 provides a first voltage, so as to drive the black capsule 42 to move to the edge region of the support column 40 and drive the white capsule 43 to move to the middle region of the support column 40, so that the display device 100 switches to a narrow viewing angle mode.

[0040] For example, the edge region of the support column 40 can be the inner wall region of the support column 40, and the middle region of the support column 40 can be the region outside the edge region.

[0041] For example, when the display device 100 switches to the narrow viewing angle mode, the backlight module located below the second substrate 20 emits uniform white light. At this time, the display device 100 provides a first voltage to drive the third electrode layer 41 of each support pillar 40 to form a corresponding electric field, so as to drive the black capsule 42 to move to the edge area of ​​the support pillar 40 and drive the white capsule 43 to move to the middle area of ​​the support pillar 40. Since the black capsule 42 moves to the edge area of ​​the support pillar 40, the light entering the support pillar 40 will be absorbed by the black capsule 42 located in the edge area, so that the light can only be emitted from the pixel area 200. Since the light entering the support pillar 40 is absorbed, the viewing angle of the display device 100 will be reduced, thereby realizing the narrow viewing angle display of the display device 100.

[0042] For example, when the display device 100 needs to switch to the narrow viewing angle mode, the display device 100 will provide a first voltage so that the second electrode layer 21 can form a corresponding electric field on the third electrode layer 41 of each supporting column 40. After the third electrode layer 41 forms a corresponding electric field, the electric field will drive the black capsule 42 and the white capsule 43 to move in the electrophoretic solution, thereby realizing the narrow viewing angle display of the display device 100.

[0043] like Figure 5 As shown, in some embodiments, the second electrode layer 21 is used to drive the third electrode layer 41 of each support pillar 40 to form a corresponding electric field when the display device 100 provides a second voltage, so as to drive the black capsule 42 to move to the bottom region of the support pillar 40 and drive the white capsule 43 to move to the top region of the support pillar 40, thereby switching the display device 100 to a normal viewing mode. The first voltage and the second voltage are different.

[0044] For example, when the display device 100 switches to the normal viewing angle mode, the backlight module located below the second substrate 20 emits uniform white light. At this time, the display device 100 provides a second voltage to drive the third electrode layer 41 of each support pillar 40 to form a corresponding electric field, thereby driving the black capsule 42 to move to the bottom area of ​​the support pillar 40 and driving the white capsule 43 to move to the top area of ​​the support pillar 40. Since the black capsule 42 moves to the bottom area of ​​the support pillar 40, some of the light entering the support pillar 40 will be absorbed by the black capsule 42 located in the edge area, and some light will be emitted from the white capsule 43 in the top area. Therefore, the viewing angle in the normal viewing angle mode is larger than that in the narrow viewing angle mode. Light can not only be emitted from the pixel area 200, but also from the area corresponding to the white capsule 43, thereby realizing the normal viewing angle display of the display device 100.

[0045] For example, when the display device 100 needs to switch to the normal viewing angle mode, the display device 100 will provide a second voltage, so that the second electrode layer 21 can form a corresponding electric field on the third electrode layer 41 of each supporting column 40. After the third electrode layer 41 forms a corresponding electric field, the electric field will drive the black capsule 42 and the white capsule 43 to move in the electrophoretic solution, thereby realizing the normal viewing angle display of the display device 100.

[0046] In some embodiments, the display device 100 further includes a color filter layer 50 disposed on the surface of the first electrode layer 11 near the second electrode layer 21.

[0047] For example, the color filter layer 50 may be located in the pixel region 200, and the color filter layer 50 may include a red filter layer, a green filter layer, or a blue filter layer.

[0048] In some embodiments, the color filter layer 50 includes a first filter layer 51, a second filter layer 52, and a third filter layer 53, which are located in different pixel regions 200. The pixel region 200 is the projection area of ​​the pixel unit 300 in the thickness direction of the display device 100.

[0049] In a pixel unit 300, the color filter layer 50 may include a first filter layer 51, a second filter layer 52, and a third filter layer 53.

[0050] Specifically, the areas where the first filter layer 51, the second filter layer 52, and the third filter layer 53 are disposed are not the same. For example, the first filter layer 51, the second filter layer 52, and the third filter layer 53 can be arranged in a first direction, wherein the first direction can be the length direction of the display device 100, i.e. Figure 2 The horizontal direction in the text will not be specified here.

[0051] Among them, the first filter layer 51, the second filter layer 52 and the third filter layer 53 can be filter layers corresponding to different colors.

[0052] As one optional implementation, the first filter layer 51 can be a red filter layer, the second filter layer 52 can be a green filter layer, and the third filter layer 53 can be a blue filter layer; as another optional implementation, the first filter layer 51 can be a green filter layer, the second filter layer 52 can be a blue filter layer, and the third filter layer 53 can be a red filter layer; as yet another optional implementation, the first filter layer 51 can be a blue filter layer, the second filter layer 52 can be a red filter layer, and the third filter layer 53 can be a green filter layer. No specific limitations are imposed here.

[0053] Taking three pixel regions 200 as an example, the three pixel regions 200 correspond to the first filter layer 51, the second filter layer 52 and the third filter layer 53 respectively. The first filter layer 51, the second filter layer 52 and the third filter layer 53 each correspond to a filter of a certain color. The brightness of each sub-pixel can be controlled by adjusting the transmittance, and then various colors are generated by mixing the three primary colors.

[0054] For example, the first filter layer 51, the second filter layer 52, and the third filter layer 53 are arranged adjacent to each other. That is, for each first filter layer 51, the adjacent filter layers are the second filter layer 52 and the third filter layer 53; for each second filter layer 52, the adjacent filter layers are the first filter layer 51 and the third filter layer 53; and for each third filter layer 53, the adjacent filter layers are the first filter layer 51 and the second filter layer 52. It should be noted that "adjacent" means that the edges of the filter layers are adjacent to each other. That is, for filter layer a, the filter layers adjacent to filter layer a are the filter layers corresponding to the upper, lower, left, and right sides of filter layer a.

[0055] In some embodiments, the display device 100 further includes a black matrix layer 60, which is disposed between the support post 40 and the first electrode layer 11, and the black matrix layer 60 also abuts against the support post 40.

[0056] Specifically, the black matrix layer 60 can reduce light leakage in non-light-emitting areas by blocking backlight or light leakage between pixels, making the black more pure and thus enhancing the difference between light and dark in the image, thereby achieving the effects of improving contrast, preventing color crosstalk, and blocking non-light-emitting areas.

[0057] In some embodiments, the support post 40 may be disposed at the corner position of the pixel unit 300.

[0058] For example, since the pixel unit 300 is generally rectangular, preferably square, the four corners of the pixel unit 300 are the corner points of the pixel unit 300. Furthermore, since each pixel unit 300 is arranged adjacent to each other, the corner points of the pixel units 300 are the connection points of the various pixel units 300. Therefore, by placing the support post 40 at the corner points of the pixel unit 300, the support post 40 can simultaneously provide a limiting fit to the pixel units 300 near those corner points, which not only further improves the support for the top substrate but also further improves the stability of the cell thickness.

[0059] Of course, the support post 40 can be disposed at any edge position of the pixel unit 300, such as the support post 40 can be disposed at the adjacent edge of the pixel unit 300, and no specific limitation is made here. Preferably, the support post 40 is disposed at the corner position of the pixel unit 300.

[0060] In some embodiments, the first electrode layer 11 and the second electrode layer 21 are made of indium tin oxide (ITO). Indium tin oxide has good electrical conductivity and is inexpensive, which helps to reduce production costs.

[0061] In some embodiments, the cross-sectional shape of the support column 40 is trapezoidal.

[0062] For example, since the cross-sectional shape of the support column 40 is trapezoidal, it can provide a relatively stable and regular accommodating space for the liquid crystal molecules 31, while also ensuring that the light enters the support column 40 at a certain incident angle. This is beneficial for the black capsule 42 inside the support column 40 to absorb the light, thereby accurately realizing the narrow viewing angle mode and normal viewing angle mode of the display device 100.

[0063] In some embodiments, the bottom edge of the cross-sectional shape of the support column 40 is located on the side closer to the first electrode layer 11.

[0064] For example, since the cross-sectional shape of the support column 40 is trapezoidal, the bottom edge of the cross-sectional shape of the support column 40 is the long side, and the top edge of the cross-sectional shape of the support column 40 is the short side. In this embodiment, the bottom edge of the cross-sectional shape of the support column 40 is located near the first electrode layer 11, and the top edge of the cross-sectional shape of the support column 40 is located near the second electrode layer 21. This provides a relatively stable and regular accommodating space for the liquid crystal molecules 31, while also ensuring that light enters the support column 40 at a certain incident angle, which is beneficial for the black capsule 42 inside the support column 40 to absorb light, thereby accurately realizing the narrow viewing angle mode and normal viewing angle mode of the display device 100.

[0065] In some embodiments, the material of the black capsule 42 includes carbon black; and / or, the material of the white capsule 43 includes titanium dioxide.

[0066] Among them, the black capsule 42 is composed of microcapsule wall material, transparent dispersion medium, black electrophoretic particles, and charge control agent, while the white capsule 43 is composed of microcapsule wall material, transparent dispersion medium, white electrophoretic particles, and charge control agent.

[0067] For example, the microcapsule wall material can be made of polymeric materials such as gelatin-gum arabic, urea-formaldehyde resin, and melamine resin, or synthetic resins such as polyurethane and polyurea. The microcapsule wall material is used to form micron-sized (10μm-100μm in diameter) closed cavities. This microcapsule wall material can protect the internal electrophoretic particles, preventing particle aggregation, sedimentation, and media leakage, while providing mechanical strength and flexibility to adapt to different substrates.

[0068] For example, the transparent dispersion medium can be the filler liquid 44 (electrophoresis solution). The material of the transparent dispersion medium is generally a non-polar transparent liquid such as high-purity silicone oil, paraffin oil, or isoparaffin. As a suspension carrier for black and white particles, the transparent dispersion medium provides an environment with low viscosity, high insulation, and chemical stability, ensuring that the particles migrate quickly and smoothly under the electric field without reacting with the wall material / particles.

[0069] For example, black electrophoretic particles include carbon black, which is typically negatively charged and migrates towards the positive electrode under the influence of an electric field. White electrophoretic particles include titanium dioxide, which is typically positively charged and migrates towards the negative electrode under the influence of an electric field.

[0070] For example, charge control agents are used to precisely regulate the potential of black or white electrophoretic particles, thereby improving charge stability and migration response speed.

[0071] It should be noted that the charge polarity can be adjusted according to the actual situation (e.g., white electrophoretic particles carry a negative charge, and black electrophoretic particles carry a positive charge), as long as the black and white electrophoretic particles can be moved by an electric field. Microcup structures can also be used instead of microcapsule structures; both have the same composition system, only the encapsulation method differs.

[0072] The display device 100 provided in this application adds a black capsule 42 and a white capsule 43 inside the support column 40 and controls the movement of the black capsule 42 and the white capsule 43, thereby conveniently and quickly realizing the narrow viewing angle mode and the normal viewing angle mode of the display device 100. The switching between the two display modes is reliable and convenient, and the implementation method is relatively simple and low cost.

[0073] like Figure 6 As shown in the embodiments, this application also proposes an electronic device 1000, which includes a display device 100 as described in any embodiment of this application. This electronic device 1000 can meet the needs of multiple people viewing the screen, and the method for switching between wide-viewing-angle mode and narrow-viewing-angle mode is relatively simple. The structure of the display device is relatively simple, and the cost is low.

[0074] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0075] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0076] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A display device, characterized in that, The display device includes: A first substrate, the first substrate including a first electrode layer; The second substrate includes a second electrode layer disposed opposite to the first electrode layer, and the second electrode layer includes a plurality of pixel units; A liquid crystal layer is disposed between the first substrate and the second substrate, and the liquid crystal layer includes a plurality of liquid crystal molecules; A support post is disposed on the periphery of the pixel unit and is connected to the first electrode layer and the second electrode layer. The support post is used to support the first substrate. The support post includes a third electrode layer and black capsules and white capsules with different electrical properties. The second electrode layer is used to drive the third electrode layer of each of the support columns to form a corresponding electric field when the display device provides a target voltage, so as to drive the black capsule and the white capsule to move, thereby switching the display device to different display modes.

2. The display device according to claim 1, characterized in that, The display mode includes a narrow viewing angle mode. The second electrode layer is used to drive the third electrode layer of each of the support pillars to form a corresponding electric field when the display device provides a first voltage, so as to drive the black capsule to move to the edge area of ​​the support pillar and to move the black capsule to the middle area of ​​the support pillar, thereby switching the display device to the narrow viewing angle mode.

3. The display device according to claim 1, characterized in that, The display mode includes a normal viewing mode. The second electrode layer is used to drive the third electrode layer of each of the support columns to form a corresponding electric field when the display device provides a second voltage, so as to drive the black capsule to move to the bottom area of ​​the support column and drive the black capsule to move to the top area of ​​the support column, thereby switching the display device to the normal viewing mode.

4. The display device according to claim 1, characterized in that, The display device further includes a color filter layer disposed on the surface of the first electrode layer near the second electrode layer.

5. The display device according to claim 4, characterized in that, The color filter layer includes a first filter layer, a second filter layer, and a third filter layer. The first filter layer, the second filter layer, and the third filter layer are located in different pixel regions. The pixel region is the projection area of ​​the pixel unit in the thickness direction of the display device.

6. The display device according to claim 1, characterized in that, The display device further includes a black matrix layer, which is disposed between the support column and the first electrode layer, and the black matrix layer also abuts against the support column.

7. The display device according to claim 1, characterized in that, The cross-sectional shape of the support column is trapezoidal.

8. The display device according to claim 7, characterized in that, The bottom edge of the cross-sectional shape of the support column is located on the side closest to the first electrode layer.

9. The display device according to claim 1, characterized in that, The material of the black capsule includes carbon black; and / or, the material of the white capsule includes titanium dioxide.

10. An electronic device, characterized in that, The electronic device includes the display device according to any one of claims 1-9.

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