Display devices and electronic equipment

Abstract

This application provides a display device and an electronic device, relating to the display field. The display device includes a first substrate, a second substrate, and a flow medium layer; the first substrate includes a first electrode layer; the second substrate includes a second electrode layer disposed opposite to the first electrode layer; the flow medium layer is disposed between the first and second electrode layers, and includes a plurality of liquid crystal pillars, each liquid crystal pillar including a liquid crystal capsule layer and liquid crystal molecules disposed within the liquid crystal capsule layer; wherein, the second electrode layer is used to drive the liquid crystal capsule layers of each liquid crystal pillar to form a corresponding electric field when the display device provides a first voltage or a second voltage, thereby causing the liquid crystal molecules within the liquid crystal capsule layers to rotate, thus switching the display device to a wide viewing angle mode or a narrow viewing angle mode; the first voltage and the second voltage are different. This application not only enables convenient and reliable switching between wide and narrow viewing angle modes of the display device, but also increases the viewing angle of the display device in wide viewing angle mode.

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, wide viewing angles are currently the mainstream development trend for LCDs. Electronic devices such as laptops, personal digital assistants, tablets, and mobile phones all utilize wide viewing angle technology, allowing viewers to see a complete and undistorted image from different angles. However, when it comes to personal privacy and important information, the use of wide viewing angle displays in some public places can be inconvenient. For example, while waiting for a train at a station, people next to or behind the user may be able to see the content on the screen of the user's wide-viewing-angle portable electronic device.

[0003] However, while related technologies can switch between wide-viewing-angle and narrow-viewing-angle modes for display devices, the viewing angle of the display device is generally less than 140° in wide-viewing-angle mode. In scenarios where screen content needs to be shared with others, this cannot meet the needs of multiple people watching the screen. Furthermore, the methods provided by related technologies for switching between wide-viewing-angle and narrow-viewing-angle modes are relatively complex and costly. Summary of the Invention

[0004] The main objective of this application is to provide a display device and electronic device that can not only realize convenient and reliable switching between wide-viewing-angle mode and narrow-viewing-angle mode of the display device, but also increase the viewing angle of the display device in wide-viewing-angle mode to meet the needs of multiple people watching the screen.

[0005] In a first aspect, this application provides a display device, the display device comprising a first substrate, a second substrate, and a flow dielectric layer; The first substrate includes a first electrode layer; The second substrate includes a second electrode layer disposed opposite to the first electrode layer; The flow medium layer is disposed between the first electrode layer and the second electrode layer, and the flow medium layer includes a plurality of liquid crystal columns, each liquid crystal column including a liquid crystal capsule layer and liquid crystal molecules disposed within the liquid crystal capsule layer; The second electrode layer is used to drive the liquid crystal capsule layer of each liquid crystal column to form a corresponding electric field when the display device provides a first voltage, so as to rotate the liquid crystal molecules in the liquid crystal capsule layer and switch the display device to a wide viewing angle mode; the second electrode layer is also used to drive the liquid crystal capsule layer of each liquid crystal column to form a corresponding electric field when the display device provides a second voltage, so as to rotate the liquid crystal molecules in the liquid crystal capsule layer and switch the display device to a narrow viewing angle mode, wherein the first voltage is different from the second voltage.

[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 includes a first substrate, a second substrate, and a flow medium layer. The first substrate includes a first electrode layer. The second substrate includes a second electrode layer disposed opposite to the first electrode layer. The flow medium layer is disposed between the first electrode layer and the second electrode layer. The flow medium layer includes a liquid crystal layer, which includes a plurality of liquid crystal pillars. Each liquid crystal pillar includes a liquid crystal capsule layer and liquid crystal molecules disposed within the liquid crystal capsule layer. The second electrode layer is used to drive the liquid crystal capsule layers of each liquid crystal pillar to form a corresponding electric field when the display device provides a first voltage, so as to rotate the liquid crystal molecules within the liquid crystal capsule layers, thereby switching the display device to a wide viewing angle mode. The second electrode layer is also used to drive the liquid crystal capsule layers of each liquid crystal pillar to form a corresponding electric field when the display device provides a second voltage, so as to rotate the liquid crystal molecules within the liquid crystal capsule layers, thereby switching the display device to a narrow viewing angle mode. The first voltage and the second voltage are different. It not only enables convenient and reliable switching between wide-viewing-angle and narrow-viewing-angle modes of display devices, but also increases the viewing angle of the display device in wide-viewing-angle mode. In scenarios where screen content needs to be shared with others, it can meet the needs of multiple people watching the screen. Furthermore, the method of switching between wide-viewing-angle and narrow-viewing-angle modes is relatively simple, the structure of the display device is relatively simple, and the cost is low. 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 This is a schematic diagram of the structure of a display device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a liquid crystal column provided in an embodiment of this application; Figure 3A schematic diagram of the light path in a wide viewing angle mode of a display device provided in an embodiment of this application; Figure 4 A schematic diagram of the light path in a narrow viewing angle mode of a display device provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a liquid crystal capsule layer 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. Flow medium layer; 31. First liquid crystal layer; 32. Second liquid crystal layer; 33. Liquid crystal column; 34. Liquid crystal capsule layer; 341. Third electrode layer; 342. Liquid crystal alignment film; 35. Liquid crystal molecules; 40. Color filter layer; 41. First filter layer; 42. Second filter layer; 43. Third filter layer; 50. Black Matrix Layer; 60. Insulation layer; 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] To enable switching between wide-viewing-angle and narrow-viewing-angle modes on a display device, the following methods are generally used in related technologies: (1) When the display device is switched to narrow viewing angle mode, a protective film with privacy function needs to be attached.

[0017] (2) The display device controls the switching between wide-viewing-angle mode and narrow-viewing-angle mode by changing the direction of the light source.

[0018] (3) The display device switches between wide viewing angle mode and narrow viewing angle mode through different pixel units.

[0019] However, while the above methods can switch between wide-viewing-angle and narrow-viewing-angle modes of the display device, in wide-viewing-angle mode, the viewing angle of the display device is less than 140°. In scenarios where screen content needs to be shared with others, this cannot meet the needs of multiple people watching the screen. Furthermore, the above implementation methods are relatively complex and costly.

[0020] Viewing angle refers to the range within which a user can view the screen from the side without the image remaining clear and without significant distortion in color and brightness. A viewing angle of less than 140° means that a user can view the screen from within 70° to the left and 70° to the right without significant distortion in color and brightness.

[0021] To solve the above-mentioned technical problems, the display device provided in this application can not only realize convenient and reliable switching between wide viewing angle mode and narrow viewing angle mode, but also increase the viewing angle of the display device in wide viewing angle mode. In scenarios where screen content needs to be shared with others, it can meet the needs of multiple people watching the screen. Moreover, the method of 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.

[0022] 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.

[0023] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Figure 2 This is a schematic diagram of a liquid crystal column provided in an embodiment of this application.

[0024] like Figure 1 and Figure 2 As shown, the display device 100 includes a first substrate 10, a second substrate 20 and a flow medium 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.

[0025] like Figure 1 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.

[0026] 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.

[0027] like Figure 1 and Figure 2 As shown, the flow medium layer 30 is disposed between the first electrode layer 11 and the second electrode layer 21. The flow medium layer 30 can be a liquid crystal layer, which includes a plurality of liquid crystal pillars 33. Each liquid crystal pillar 33 includes a liquid crystal capsule layer 34 and liquid crystal molecules 35 disposed within the liquid crystal capsule layer 34.

[0028] For example, liquid crystal molecules 35 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 35 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 35 rearrange themselves, causing the light to be refracted or deflected, ultimately presenting images of different gray levels.

[0029] Specifically, the second electrode layer 21 is used to drive the liquid crystal capsule layer 34 of each liquid crystal column 33 to form a corresponding electric field when the display device 100 provides a first voltage, so as to make the liquid crystal molecules 35 in the liquid crystal capsule layer 34 rotate, thereby switching the display device 100 to a wide viewing angle mode.

[0030] like Figure 3 As shown, when the display device 100 switches to wide 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 liquid crystal capsule layer 34 of each liquid crystal column 33 to form a corresponding electric field, so that the liquid crystal molecules 35 in the liquid crystal layer rotate. At this time, the white light emitted by the backlight module passes through the liquid crystal layer, and its polarization state is controlled, so that the light diffuses, thereby realizing the wide viewing angle display of the display device 100.

[0031] For example, when the display device 100 needs to switch to the wide viewing angle mode, the display device 100 will provide a first voltage so that the second electrode layer 21 can drive the liquid crystal capsule layer 34 of each liquid crystal column 33 in the liquid crystal layer to form a corresponding electric field inside the liquid crystal column 33. After the liquid crystal capsule layer 34 forms a corresponding electric field, the electric field will control the liquid crystal molecules 35 disposed in the liquid crystal capsule layer 34 to arrange and deflect.

[0032] Specifically, the second electrode layer 21 is used to drive the liquid crystal capsule layer 34 of each liquid crystal column 33 to form a corresponding electric field when the display device 100 provides a second voltage, so as to make the liquid crystal molecules 35 in the liquid crystal capsule layer 34 rotate, thereby switching the display device 100 to a narrow viewing angle mode.

[0033] like Figure 4 As shown, 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 second voltage to drive the liquid crystal capsule layer 34 of each liquid crystal column 33 to form a corresponding electric field, so that the liquid crystal molecules 35 in the liquid crystal layer rotate. At this time, the white light emitted by the backlight module passes through the liquid crystal layer, and its polarization state is precisely controlled, so that the light is focused, thereby realizing the narrow viewing angle display of the display device 100.

[0034] For example, when the display device 100 needs to switch to the narrow viewing angle mode, the display device 100 will provide a second voltage so that the second electrode layer 21 can drive the liquid crystal capsule layer 34 of each liquid crystal column 33 in the liquid crystal layer to form a corresponding electric field inside the liquid crystal column 33. After the liquid crystal capsule layer 34 forms a corresponding electric field, the electric field will control the liquid crystal molecules 35 disposed in the liquid crystal capsule layer 34 to arrange and deflect.

[0035] The first voltage and the second voltage used to control the switching between wide-viewing-angle mode and narrow-viewing-angle mode of the display device are different. Specifically, under the drive of different voltages (the first voltage or the second voltage), the second electrode layer 21 can drive each liquid crystal column 33 and the liquid crystal capsule layer 34 in the liquid crystal layer to form a corresponding electric field in the liquid crystal column 33, so that the deflection angle of the liquid crystal molecules in the liquid crystal capsule layer 34 of the display device 100 is different in wide-viewing-angle mode and narrow-viewing-angle mode, thereby realizing the switching between the two states of wide-viewing-angle mode and narrow-viewing-angle mode of the display device 100.

[0036] It should be noted that, since the liquid crystal layer generally includes multiple liquid crystal pillars 33, the electric field formed by the liquid crystal capsule layer 34 of each liquid crystal pillar 33 inside the liquid crystal pillar 33 may be the same or different under the action of different voltages (first voltage or second voltage). Therefore, the deflection angle of the liquid crystal molecules 35 in each liquid crystal pillar 33 may be the same or different, and can be set according to the actual situation. No specific limitation is made here.

[0037] In this embodiment, the display device 100 is in wide-viewing-angle mode, and the viewing angle of the display device 100 is at least greater than 140°, such as 145°, 150°, 155°, 160°, etc. That is, when a user looks at the screen from 75° on the left and 75° on the right, the screen image is still clear, and the color and brightness are not severely distorted. Therefore, the display device 100 provided in this embodiment replaces the existing liquid crystal structure with a liquid crystal pillar 33 structure. The liquid crystal pillar 33 structure can increase the viewing angle of the display device 100 in wide-viewing-angle mode (greater than 140°). In scenarios where screen content needs to be shared with others, it can meet the needs of multiple people watching the screen. Moreover, the method of switching between wide-viewing-angle mode and narrow-viewing-angle mode is relatively simple, the structure of the display device 100 is relatively simple, and the cost is low.

[0038] 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., that is, the user cannot see the screen content of the display device 100 when looking from 45° on the left side of the screen or 45° on the right side of the screen.

[0039] Meanwhile, the display device 100 provided in this application embodiment drives the liquid crystal capsule layer 34 of each liquid crystal column 33 to form a corresponding electric field inside the liquid crystal column 33, thereby controlling the liquid crystal molecules 35 in different liquid crystal columns 33 to be arranged and deflected accordingly, thereby quickly and conveniently realizing the switching between wide viewing angle mode and narrow viewing angle mode of the display device 100.

[0040] like Figure 1 As shown, in some embodiments, the flow medium layer 30 includes a first liquid crystal layer 31 disposed near the first substrate 10 and a second liquid crystal layer 32 disposed near the second substrate 20, and both the first liquid crystal layer 31 and the second liquid crystal layer 32 include a plurality of liquid crystal pillars 33.

[0041] For example, the flow medium layer 30 includes a first liquid crystal layer 31 and a second liquid crystal layer 32. The first liquid crystal layer 31 can be disposed close to the first substrate 10, and the second liquid crystal layer 32 can be disposed close to the second substrate 20. Since the first substrate 10 is generally the top substrate and the second substrate 20 is generally the bottom substrate, the first liquid crystal layer 31 is disposed on the top and the second liquid crystal layer 32 is disposed on the bottom.

[0042] For example, both the first liquid crystal layer 31 and the second liquid crystal layer 32 include a plurality of liquid crystal pillars 33. The number of liquid crystal pillars 33 in the first liquid crystal layer 31 and the number of liquid crystal pillars 33 in the second liquid crystal layer 32 may be the same or different, and no specific limitation is made here. Preferably, in order to ensure the display effect, the number of liquid crystal pillars 33 in the first liquid crystal layer 31 and the number of liquid crystal pillars 33 in the second liquid crystal layer 32 are the same.

[0043] In this embodiment, by providing a first liquid crystal layer 31 and a second liquid crystal layer 32 in the flow medium layer 30, the white light emitted by the backlight module can pass through the second liquid crystal layer 32 and the first liquid crystal layer 31 in sequence. This allows for precise control of the polarization state of the light through the second liquid crystal layer 32 and the first liquid crystal layer 31, enabling the light to be further diffused or focused. This increases the viewing angle of the display device 100 in wide viewing angle mode (greater than 140°) and reduces the viewing angle of the display device 100 in narrow viewing angle mode (less than 90°). Moreover, the method of switching between wide viewing angle mode and narrow viewing angle mode is relatively simple, the structure of the display device 100 is relatively simple, and the cost is low.

[0044] In some embodiments, the projections of a plurality of liquid crystal pillars 33 in the first liquid crystal layer 31 coincide in a first direction; and / or, the projections of a plurality of liquid crystal pillars 33 in the second liquid crystal layer 32 coincide in a first direction; wherein, the first direction is perpendicular to the incident light direction.

[0045] The first direction is perpendicular to the direction of light incidence. It can be understood that the first direction can be the length direction of the display device 100.

[0046] For example, the projections of the plurality of liquid crystal pillars 33 in the first liquid crystal layer 31 in the first direction overlap, which means that the plurality of liquid crystal pillars 33 in the first liquid crystal layer 31 have the same shape and size, and the plurality of liquid crystal pillars 33 are arranged in the first direction.

[0047] For example, the projections of the plurality of liquid crystal pillars 33 in the second liquid crystal layer 32 in the first direction overlap, which means that the plurality of liquid crystal pillars 33 in the second liquid crystal layer 32 have the same shape and size, and the plurality of liquid crystal pillars 33 are arranged in the first direction.

[0048] It should be noted that the liquid crystal pillars 33 in the first liquid crystal layer 31 and the liquid crystal pillars 33 in the second liquid crystal layer 32 are generally the same in shape and size, which facilitates the control of the polarization state of light, thereby realizing the wide viewing angle mode and the narrow viewing angle mode of the display device 100.

[0049] like Figure 1 As shown, in some embodiments, the projections of the liquid crystal pillars 33 in the first liquid crystal layer 31 and the projections of the liquid crystal pillars 33 in the second liquid crystal layer 32 are misaligned in the thickness direction of the display device 100.

[0050] For example, in the thickness direction of the display device 100, the projection of the liquid crystal column 33 in the first liquid crystal layer 31 does not coincide with the projection of the liquid crystal column 33 in the second liquid crystal layer 32, that is, the projection of the liquid crystal column 33 in the first liquid crystal layer 31 and the projection of the liquid crystal column 33 in the second liquid crystal layer 32 partially overlap or do not overlap.

[0051] In this embodiment, by misaligning the liquid crystal pillars 33 of the first liquid crystal layer 31 and the second liquid crystal layer 32 in the flow medium layer 30, the white light emitted by the backlight module can pass through the liquid crystal pillars 33 sequentially. This allows for precise control of the polarization state of the light through the liquid crystal pillars 33 in the second liquid crystal layer 32 and the first liquid crystal layer 31, enabling the light to be further diffused or focused. This increases the viewing angle of the display device 100 in wide-viewing-angle mode (greater than 140°) and reduces the viewing angle of the display device 100 in narrow-viewing-angle mode (less than 90°). Moreover, the method of switching between wide-viewing-angle mode and narrow-viewing-angle mode is relatively simple, the structure of the display device 100 is relatively simple, and the cost is low.

[0052] like Figure 1 As shown, in some embodiments, in the thickness direction of the display device 100, the distance between the projection center point of the liquid crystal column 33 in the first liquid crystal layer 31 and the projection center point of the adjacent liquid crystal column 33 in the second liquid crystal layer 32 is 2um-4um.

[0053] For example, since the projections of the liquid crystal pillars 33 in the first liquid crystal layer 31 and the projections of the liquid crystal pillars 33 in the second liquid crystal layer 32 are misaligned, each liquid crystal pillar 33 in the first liquid crystal layer 31 will have a corresponding liquid crystal pillar 33 in the second liquid crystal layer 32. Therefore, the corresponding liquid crystal pillar 33 in the second liquid crystal layer 32 is the adjacent liquid crystal pillar 33 in the second liquid crystal layer 32.

[0054] For ease of understanding, in the thickness direction of the display device 100, since the projection of the liquid crystal pillar 33 in the first liquid crystal layer 31 generally overlaps at least partially with the projection of the liquid crystal pillar 33 in the second liquid crystal layer 32, the adjacent liquid crystal pillar 33 in the second liquid crystal layer 32 can be determined by the overlapping area of ​​the projections of the two liquid crystal pillars 33. Generally, the liquid crystal pillar 33 with the largest overlapping area is selected as the adjacent liquid crystal pillar 33 in the second liquid crystal layer 32.

[0055] For example, in the thickness direction of the display device 100, the distance between the projection center point of the liquid crystal pillar 33 in the first liquid crystal layer 31 and the projection center point of the adjacent liquid crystal pillar 33 in the second liquid crystal layer 32 can be 2µm, 2.5µm, 3µm, 3.5µm, and 4µm. This can further increase the viewing angle of the display device 100 in wide viewing angle mode (e.g., greater than 150°) and reduce the viewing angle of the display device 100 in narrow viewing angle mode (e.g., less than 80°).

[0056] like Figure 2 As shown, in some embodiments, the cross-sectional shape of the liquid crystal column 33 is semi-circular.

[0057] For example, the cross-sectional shape of the liquid crystal column 33 can be semi-circular. By setting the cross-sectional shape of the liquid crystal column 33 to be semi-circular, the liquid crystal molecules 35 in the liquid crystal column 33 can be more concentrated, so that when light passes through the liquid crystal column 33, it can be further diffused or concentrated, thereby increasing the viewing angle of the display device 100 in the wide viewing angle mode (greater than 140°) and reducing the viewing angle of the display device 100 in the narrow viewing angle mode (less than 90°). Moreover, the method of switching between the wide viewing angle mode and the narrow viewing angle mode is relatively simple, the structure of the display device 100 is relatively simple, and the cost is low.

[0058] In some embodiments, the bottom edge of the cross-sectional shape of the liquid crystal pillars 33 of the first liquid crystal layer 31 is located on the side away from the first electrode layer 11; and / or, the bottom edge of the cross-sectional shape of the liquid crystal pillars 33 of the second liquid crystal layer 32 is located on the side away from the second electrode layer 21.

[0059] For example, since the cross-sectional shape of the liquid crystal column 33 is semi-circular, the bottom edge of the cross-sectional shape of the liquid crystal column 33 is the diameter of the semi-circle. In this embodiment, the bottom edge of the cross-sectional shape of the liquid crystal column 33 of the first liquid crystal layer 31 is located on the side away from the first electrode layer 11, that is, the arc of the cross-sectional shape of the liquid crystal column 33 is set close to the first electrode layer 11, and the bottom edge of the cross-sectional shape of the liquid crystal column 33 is set away from the first electrode layer 11. This ensures that the light emission position is located on the arc side of the cross-sectional shape of the liquid crystal column 33, which is beneficial for the diffusion or focusing of light when passing through the liquid crystal column 33.

[0060] For example, since the cross-sectional shape of the liquid crystal column 33 is semi-circular, the bottom edge of the cross-sectional shape of the liquid crystal column 33 is the diameter of the semi-circle. In this embodiment, the bottom edge of the cross-sectional shape of the liquid crystal column 33 of the second liquid crystal layer 32 is located on the side away from the second electrode layer 21, that is, the arc of the cross-sectional shape of the liquid crystal column 33 is set close to the second electrode layer 21, and the bottom edge of the cross-sectional shape of the liquid crystal column 33 is set away from the second electrode layer 21. This ensures that the incident position of light is located on the arc side of the cross-sectional shape of the liquid crystal column 33, which is beneficial for the diffusion or focusing of light when passing through the liquid crystal column 33.

[0061] It should be noted that the bottom edge of the cross-sectional shape of the liquid crystal pillar 33 of the first liquid crystal layer 31 may be located on the side away from the first electrode layer 11; or the bottom edge of the cross-sectional shape of the liquid crystal pillar 33 of the second liquid crystal layer 32 may be located on the side away from the second electrode layer 21. Preferably, the bottom edge of the cross-sectional shape of the liquid crystal pillar 33 of the first liquid crystal layer 31 may be located on the side away from the first electrode layer 11, and the bottom edge of the cross-sectional shape of the liquid crystal pillar 33 of the second liquid crystal layer 32 may be located on the side away from the second electrode layer 21. This ensures that the incident and exit positions of light are both located on the arc side of the cross-sectional shape of the liquid crystal pillar 33, which is beneficial for the diffusion or convergence of light when passing through the liquid crystal pillar 33.

[0062] like Figure 5 As shown, in some embodiments, the liquid crystal capsule layer 34 includes a third electrode layer 341 and a liquid crystal alignment film 342. The liquid crystal alignment film 342 is disposed on the inner surface of the third electrode layer 341. The third electrode layer 341 is used to form a corresponding electric field under the action of the second electrode layer 21, so as to make the liquid crystal molecules 35 in the liquid crystal capsule layer 34 rotate.

[0063] Among them, the liquid crystal alignment film 342 mainly guides the liquid crystal molecules 35 to arrange and orient in an orderly manner through the micro-groove structure or chemical treatment on the surface, thereby controlling the propagation path of light.

[0064] For example, when the display device 100 needs to switch to a wide viewing angle mode or a narrow viewing angle mode, the display device 100 will provide a first voltage or a second voltage, so that the second electrode layer 21 can drive the third electrode layer 341 to form a corresponding electric field. At this time, the liquid crystal alignment film 342 will guide the liquid crystal molecules 35 in the liquid crystal capsule layer 34 to arrange and orient in an orderly manner, thereby controlling the propagation path of light, and finally causing the display device 100 to switch to a wide viewing angle mode or a narrow viewing angle mode.

[0065] like Figure 1 As shown, in some embodiments, a color filter layer 40 is provided on the surface of the first electrode layer 11 near the second electrode layer 21.

[0066] For example, the color filter layer 40 may be located in the pixel area, and the color filter layer 40 may include a red filter layer, a green filter layer, or a blue filter layer.

[0067] In a pixel unit, the color filter layer 40 may include a first filter layer 41, a second filter layer 42, and a third filter layer 43.

[0068] Specifically, the areas where the first filter layer 41, the second filter layer 42, and the third filter layer 43 are set are not the same. For example, the first filter layer 41, the second filter layer 42, and the third filter layer 43 can be arranged in the first direction, which will not be specified here.

[0069] Among them, the first filter layer 41, the second filter layer 42 and the third filter layer 43 can be filter layers corresponding to different colors.

[0070] As one optional implementation, the first filter layer 41 can be a red filter layer, the second filter layer 42 can be a green filter layer, and the third filter layer 43 can be a blue filter layer; as another optional implementation, the first filter layer 41 can be a green filter layer, the second filter layer 42 can be a blue filter layer, and the third filter layer 43 can be a red filter layer; as yet another optional implementation, the first filter layer 41 can be a blue filter layer, the second filter layer 42 can be a red filter layer, and the third filter layer 43 can be a green filter layer. No specific limitations are imposed here.

[0071] Specifically, each pixel can be divided into three sub-pixels, which correspond to the first filter layer 41, the second filter layer 42, and the third filter layer 43, respectively. The first filter layer 41, the second filter layer 42, and the third filter layer 43 each correspond to a filter of a certain color. The brightness of each sub-pixel can be controlled by adjusting the transmittance, and various colors are generated by mixing the three primary colors.

[0072] For example, the first filter layer 41, the second filter layer 42, and the third filter layer 43 are arranged adjacent to each other. That is, for each first filter layer 41, the adjacent filter layers are the second filter layer 42 and the third filter layer 43; for each second filter layer 42, the adjacent filter layers are the first filter layer 41 and the third filter layer 43; and for each third filter layer 43, the adjacent filter layers are the first filter layer 41 and the second filter layer 42. 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.

[0073] In some embodiments, the display device 100 further includes a black matrix layer 50 and an insulating layer 60. The black matrix layer 50 is disposed on the side of the color filter layer 40 close to the first electrode layer 11, and the insulating layer 60 is disposed on the side of the color filter layer 40 away from the first electrode layer 11.

[0074] Specifically, the black matrix layer 50 can reduce light leakage in non-light-emitting areas by blocking backlight or light leakage between pixels, making the blacks purer and thus enhancing the difference between light and dark in the image. This achieves the effects of improving contrast, preventing color crosstalk, and masking non-light-emitting areas. The insulating layer 60 mainly serves as electrical insulation and protection.

[0075] The display device 100 provided in this application can not only realize convenient and reliable switching between wide viewing angle mode and narrow viewing angle mode, but also increase the viewing angle of the display device 100 in wide viewing angle mode. In scenarios where screen content needs to be shared with others, it can meet the needs of multiple people watching the screen. Moreover, the method of switching between wide viewing angle mode and narrow viewing angle mode is relatively simple, the structure of the display device 100 is relatively simple, and the cost is low.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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; A flow medium layer is disposed between the first electrode layer and the second electrode layer. The flow medium layer includes a plurality of liquid crystal pillars, each liquid crystal pillar including a liquid crystal capsule layer and liquid crystal molecules disposed within the liquid crystal capsule layer. The second electrode layer is used to drive the liquid crystal capsule layer of each liquid crystal column to form a corresponding electric field when the display device provides a first voltage, so as to rotate the liquid crystal molecules in the liquid crystal capsule layer and switch the display device to a wide viewing angle mode; the second electrode layer is also used to drive the liquid crystal capsule layer of each liquid crystal column to form a corresponding electric field when the display device provides a second voltage, so as to rotate the liquid crystal molecules in the liquid crystal capsule layer and switch the display device to a narrow viewing angle mode, wherein the first voltage is different from the second voltage.

2. The display device according to claim 1, characterized in that, The fluid medium layer includes a first liquid crystal layer disposed near the first substrate and a second liquid crystal layer disposed near the second substrate, wherein both the first liquid crystal layer and the second liquid crystal layer include a plurality of liquid crystal pillars.

3. The display device according to claim 2, characterized in that, The projections of the plurality of liquid crystal pillars in the first liquid crystal layer in the first direction coincide; and / or, the projections of the plurality of liquid crystal pillars in the second liquid crystal layer in the first direction coincide. Wherein, the first direction is perpendicular to the direction of light incident.

4. The display device according to claim 2, characterized in that, In the thickness direction of the display device, the projections of the liquid crystal pillars in the first liquid crystal layer and the projections of the liquid crystal pillars in the second liquid crystal layer are misaligned.

5. The display device according to claim 4, characterized in that, In the thickness direction of the display device, the distance between the projection center point of the liquid crystal column in the first liquid crystal layer and the projection center point of the adjacent liquid crystal column in the second liquid crystal layer is 2um-4um.

6. The display device according to claim 2, characterized in that, The cross-sectional shape of the liquid crystal column is semi-circular.

7. The display device according to claim 6, characterized in that, The bottom edge of the cross-sectional shape of the liquid crystal column in the first liquid crystal layer is located on the side away from the first electrode layer; and / or, The bottom edge of the cross-sectional shape of the liquid crystal column in the second liquid crystal layer is located on the side away from the second electrode layer.

8. The display device according to any one of claims 1-7, characterized in that, The liquid crystal capsule layer includes a third electrode layer and a liquid crystal alignment film. The liquid crystal alignment film is disposed on the inner surface of the third electrode layer. The third electrode layer is used to form a corresponding electric field under the action of the second electrode layer, so as to make the liquid crystal molecules in the liquid crystal capsule layer rotate.

9. The display device according to any one of claims 1-7, characterized in that, A color filter layer is disposed on the surface of the first electrode layer near the second electrode layer.

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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