Display panel and display terminal

Abstract

The invention discloses a display panel and a display terminal. The display panel comprises a light-emitting layer, a pixel definition layer and a peep-proof part, the light-emitting layer comprises a plurality of light-emitting groups, and each light-emitting group comprises at least one light-emitting unit; the light-emitting unit corresponds to a pixel opening of the pixel definition layer; the peep-proof part is arranged between two adjacent light-emitting groups and comprises a first electrode, a second electrode and charged shading particles; and the charged shading particles are configured to move in the peep-proof cavity under the driving of an electric field formed by the first electrode and the second electrode. The electric field formed by the first electrode and the second electrode drives the charged shading particles to move in the peep-proof cavity. When the electrified shading particles move to the second cavity and shield light rays emitted from the light emitting unit, a peep-proof mode is realized; and when the electrified shading particles move to the first cavity and do not shade the light rays emitted from the light emitting unit, a non-peep-proof mode is realized. By changing the electric field directions of the first electrode and the second electrode, flexible switching between a peep-proof mode and a non-peep-proof mode is realized.

Description

Technical Field

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

[0002] With the increasing popularity and application of display panels, users are increasingly concerned about protecting their personal information, and the concept of privacy protection is gradually gaining attention. As an early privacy protection method, privacy films offer advantages such as low price, ease of use, and excellent effectiveness. However, privacy films cannot be switched from privacy mode to non-privacy mode after application. To cancel privacy mode, the film must be removed, making its use quite inconvenient.

[0003] Therefore, how to cope with different usage scenarios and provide a more flexible display panel that can switch between anti-peeping mode and non-anti-peeping mode is one of the technical problems that technicians in this field urgently need to solve. Summary of the Invention

[0004] The present application provides a display panel and a display terminal to solve the technical problem that an anti-peeping film cannot flexibly switch between an anti-peeping mode and a non-anti-peeping mode.

[0005] To solve the above technical problems, the technical solutions provided by this application are as follows:

[0006] The present application provides a display panel, comprising:

[0007] substrate;

[0008] a pixel definition layer having a plurality of pixel openings;

[0009] a light-emitting layer disposed on one side of the substrate, the light-emitting layer comprising a plurality of light-emitting groups, each of the light-emitting groups comprising at least one light-emitting unit, and one light-emitting unit being disposed corresponding to one pixel opening;

[0010] A privacy protection portion is provided between two adjacent light-emitting groups, wherein a privacy protection cavity is provided in the privacy protection portion, wherein the privacy protection cavity includes a first cavity and a second cavity that are connected, wherein the first cavity is located between a surface of the pixel definition layer facing away from the substrate and the substrate, and the second cavity is located on a side of the pixel definition layer facing away from the substrate; the privacy protection portion includes:

[0011] a first electrode, disposed at an end of the first cavity facing away from the second cavity;

[0012] a second electrode, disposed at an end of the second cavity facing away from the first cavity; and

[0013] The charged light-shielding particles are disposed in the privacy cavity, and are configured to move in the privacy cavity under the driving of the electric field formed by the first electrode and the second electrode.

[0014] In the display panel of the present application, the volume of the charged light-shielding particles is less than or equal to the volume of the first cavity, and the volume of the charged light-shielding particles is greater than or equal to the volume of the second cavity.

[0015] In the display panel of the present application, the display panel includes an encapsulation layer, the light-emitting unit includes an anode, a light-emitting material layer, and a cathode stacked in sequence, the cathode is located on the side of the light-emitting material layer away from the substrate, the pixel opening exposes the anode, the encapsulation layer is arranged on the side of the cathode away from the substrate, and the second cavity is arranged in the encapsulation layer.

[0016] In the display panel of the present application, the first electrode is arranged in the same layer as the anode, and the first electrode covers one end of the first cavity away from the second cavity; the second electrode is arranged on a side of the encapsulation layer away from the substrate.

[0017] In the display panel of the present application, the entire surface of the second electrode is disposed on a side of the encapsulation layer facing away from the substrate.

[0018] In the display panel of the present application, the second electrode includes a plurality of spaced-apart electrode portions, and one of the electrode portions covers one end of the second cavity facing away from the first cavity.

[0019] In the display panel of the present application, the anti-peeping portion includes a plurality of spaced anti-peeping sub-portions, which are arranged around the light-emitting group. In a top view, the width of one anti-peeping sub-portion is greater than or equal to the width of one light-emitting unit.

[0020] In the display panel of the present application, the privacy protection portion is disposed on the periphery of the light-emitting group and is connected to the privacy protection portion corresponding to any one of the light-emitting groups.

[0021] In the display panel of the present application, one of the light-emitting groups includes one light-emitting unit, two light-emitting units, or four light-emitting units.

[0022] The present application also provides a display terminal, which includes the above-mentioned display panel.

[0023] Beneficial Effects: The present application discloses a display panel and a display terminal. The display panel includes a substrate, a light-emitting layer, a pixel definition layer, and a privacy shield. The light-emitting layer is disposed on one side of the substrate, the light-emitting layer including a plurality of light-emitting groups, each light-emitting group including at least one light-emitting unit. The pixel definition layer is provided with a plurality of pixel openings, with one light-emitting unit corresponding to one pixel opening. The privacy shield is disposed between two adjacent light-emitting groups. A privacy shield is provided within the privacy shield, the privacy shield including a first cavity and a second cavity that are connected. The first cavity is located between a surface of the pixel definition layer facing away from the substrate and the substrate, and the second cavity is located on a side of the pixel definition layer facing away from the substrate. The privacy shield includes a first electrode, a second electrode, and charged light-shielding particles. The first electrode is disposed at one end of the first cavity facing away from the second cavity; the second electrode is disposed at one end of the second cavity facing away from the first cavity. The charged light-shielding particles are disposed within the privacy shield, and the charged light-shielding particles are configured to move within the privacy shield under the drive of the electric field formed by the first and second electrodes. The present application provides a first electrode and a second electrode at both ends of the privacy cavity. The first and second electrodes form an electric field that can drive the charged light-shielding particles in the privacy cavity to move within the privacy cavity. In privacy mode, the charged light-shielding particles move to the second cavity, where they can block the light emitted from the light-emitting unit, thereby achieving privacy protection. In non-privacy mode, the charged light-shielding particles move to the first cavity. Since the first cavity is located on the side of the pixel definition layer close to the substrate, it does not block the light emitted from the light-emitting unit, thereby achieving non-privacy protection. By changing the direction of the electric field formed by the first and second electrodes, flexible switching between privacy mode and non-privacy mode can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0025] Figure 1 A schematic diagram of a top view of the structure of a first display panel provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 A schematic diagram of a cross-sectional structure at CC in FIG;

[0027] Figure 3 for Figure 1 Another cross-sectional structural diagram at CC in FIG;

[0028] Figure 4 A schematic top view of the structure of a second display panel provided in an embodiment of the present application;

[0029] Figure 5A schematic top view of the structure of a third display panel provided in an embodiment of the present application;

[0030] Figure 6 A schematic top view of the structure of a fourth display panel provided in an embodiment of the present application;

[0031] Figure 7 A schematic structural diagram of a display terminal provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] Display panel 1, substrate 10, light-emitting layer 20, light-emitting group 200, light-emitting unit 21, anode 211, light-emitting material layer 212, cathode 213, pixel definition layer 30, anti-peeping part 40, anti-peeping cavity 41, anti-peeping sub-part 413, first cavity 411, second cavity 412, charged light-shielding particles 42, first electrode 43, second electrode 44, electrode part 441, solvent 45, encapsulation layer 50, inorganic layer 51, organic layer 52, cover plate 60, array layer 70, thin film transistor 71, drain 711, gate 712, shielding layer 72, display terminal 2, terminal body 3, first direction D1, second direction D2. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0035] The present application provides a display panel 1, such as Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of a top view of the first display panel provided in an embodiment of the present application. Figure 2 for Figure 1A schematic diagram of a cross-sectional structure at CC in FIG. The display panel 1 includes a substrate 10, a light-emitting layer 20, a pixel definition layer 30, and a privacy shield 40. The light-emitting layer 20 is arranged on one side of the substrate 10. The light-emitting layer 20 includes a plurality of light-emitting groups 200. Each light-emitting group 200 includes at least one light-emitting unit 21. The pixel definition layer 30 is provided with a plurality of pixel openings, and one light-emitting unit 21 is provided corresponding to one pixel opening. The privacy shield 40 is provided between two adjacent light-emitting groups 200. The privacy shield 40 includes a privacy shield cavity 41. The privacy shield cavity 41 includes a first cavity 411 and a second cavity 412 that are connected. The first cavity 411 is located in the pixel definition layer 30. 0 is located between the side surface of the pixel definition layer 30 facing away from the substrate 10 and the substrate 10, and the second cavity 412 is located on the side of the pixel definition layer 30 facing away from the substrate 10; the anti-peeping portion 40 includes a first electrode 43, a second electrode 44 and a charged light-shielding particle 42, the first electrode 43 is arranged at one end of the first cavity 411 facing away from the second cavity 412; the second electrode 44 is arranged at one end of the second cavity 412 facing away from the first cavity 411; and the charged light-shielding particle 42 is arranged in the anti-peeping cavity 41, and the charged light-shielding particle 42 is configured to move in the anti-peeping cavity 41 under the drive of the electric field formed by the first electrode 43 and the second electrode 44.

[0036] In this embodiment, the display panel 1 may be an OLED panel, a Mini-LED panel, a Micro-LED panel, or the like.

[0037] In this embodiment, the substrate 10 may be a rigid substrate or a flexible substrate. The rigid substrate may be a glass substrate, a quartz substrate, a silicon wafer, etc. The flexible substrate may be one of colorless polyimide (PI), polycarbonate (PC), polynorbornene (PNB), polyethylene terephthalate (PET), etc.

[0038] In this embodiment, if Figure 1 and Figure 2 As shown, the light-emitting layer 20 includes multiple light-emitting groups 200, each of which includes at least one light-emitting unit 21. For example, a light-emitting group 200 may include one, two, four, or another number of light-emitting units 21. When a light-emitting group 200 includes two or more light-emitting units 21, the multiple light-emitting units 21 within the same light-emitting group 200 are adjacent. Optionally, each light-emitting group 200 has the same number of light-emitting units 21, but this is not limited thereto.

[0039] The light-emitting unit 21 may include a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit, and the light-emitting unit 21 may realize image display. When the display panel 1 is an OLED panel, the light-emitting unit 21 may include an anode 211, a light-emitting material layer 212, and a cathode 213 stacked in sequence. The anode 211 provides holes, and the cathode 213 provides electrons. The holes and electrons recombine in the light-emitting material layer 212 to emit light.

[0040] In this embodiment, if Figure 2 As shown, the pixel definition layer 30 and the light-emitting layer 20 are disposed on the same side of the substrate 10. The pixel definition layer 30 is provided with multiple pixel openings, with one pixel opening corresponding to one light-emitting unit 21. Specifically, the pixel opening can expose the anode 211, the light-emitting material layer 212 is disposed within the pixel opening, and the cathode 213 covers the light-emitting material layer 212. The cathode 213 can be provided as an entire layer, that is, the cathodes 213 of multiple light-emitting units 21 can be interconnected, but the present invention is not limited thereto.

[0041] In this embodiment, the display panel 1 includes an array layer 70, which is disposed between the substrate 10 and the light-emitting layer 20. The array layer 70 includes a driving circuit for driving the light-emitting unit 21 to emit light. The driving circuit includes a plurality of thin-film transistors 71, each of which has a drain electrode 711 electrically connected to the anode 211 of the light-emitting unit 21, thereby providing a driving signal to the anode 211.

[0042] In this embodiment, the privacy shielding portion 40 is disposed between two adjacent light-emitting groups 200. A privacy shielding cavity 41 is disposed within the privacy shielding portion 40. The privacy shielding cavity 41 is a sealed cavity that can accommodate charged light-shielding particles 42. The privacy shielding cavity 41 includes a first cavity 411 and a second cavity 412 that are connected. The first cavity 411 is located between the plane of the side of the pixel definition layer 30 facing away from the substrate 10 and the substrate 10, and the second cavity 412 is located on the side of the pixel definition layer 30 facing away from the substrate 10. For ease of description, the surface of the pixel definition layer 30 facing away from the substrate 10 is referred to as the upper surface of the pixel definition layer 30. This means that the privacy shielding cavity 41 can be divided into two cavities by the upper surface of the pixel definition layer 30. It should be understood that the upper surface of the pixel definition layer 30 can be a flat surface or a curved surface. The interface between the upper surface of the pixel definition layer 30 and the privacy shielding portion 40 divides the privacy shielding cavity 41 into two cavities.

[0043] It should be noted that the privacy cavity 41 can be implemented by forming a groove in the film layer of the display panel 1, that is, the privacy cavity 41 can penetrate a portion of the insulating layer of the display panel 1. Optionally, the privacy cavity 41 penetrates at least a portion of the pixel definition layer 30. To prevent the charged light-shielding particles 42 and the like in the privacy cavity 41 from affecting the light-emitting unit 21, the privacy cavity 41 can be spaced apart from the light-emitting unit 21.

[0044] Optionally, in some embodiments, the privacy cavity 41 may penetrate a portion of the array layer 70 . It should be noted that the privacy cavity 41 should avoid the thin film transistor 71 and the like to avoid affecting the driving circuit of the array layer 70 .

[0045] Optionally, in some embodiments, the sidewalls of the privacy cavity 41 may extend perpendicular to the supporting surface of the substrate 10, thereby reducing the orthographic projection area of ​​the privacy cavity 41 on the substrate 10 and reducing the impact of the privacy cavity 41 on the aperture ratio of the display panel 1. The supporting surface of the substrate 10 refers to the surface of the substrate 10 used to support other film layers, and the supporting surface of the substrate 10 is substantially parallel to the display surface of the display panel 1.

[0046] In this embodiment, if Figure 2 As shown, the first electrode 43 and the second electrode 44 can be disposed at both ends of the privacy cavity 41. For example, the first electrode 43 can be disposed at the end of the privacy cavity 41 close to the substrate 10, and the second electrode 44 can be disposed at the end of the privacy cavity 41 away from the substrate 10. Through the above arrangement, the first electrode 43 and the second electrode 44 can form an electric field pointing from the first cavity 411 to the second cavity 412, thereby driving the charged light-shielding particles 42 to move.

[0047] In this embodiment, the charged light-shielding particles 42 are particles with a positive or negative charge. The charged light-shielding particles 42 can be controlled to move by an electric field. The charged light-shielding particles 42 also have light-absorbing properties, capable of blocking light. For example, the charged light-shielding particles 42 can be black particles, thereby absorbing light emitted by the light-emitting unit 21.

[0048] In this embodiment, one of the first electrode 43 and the second electrode 44 can be a positive electrode, and the other can be a negative electrode. For example, if the first electrode 43 is a positive electrode and the second electrode 44 is a negative electrode, when the charged light-shielding particles 42 are positively charged, the electric field between the first electrode 43 and the second electrode 44 causes the charged light-shielding particles 42 to gather near the second electrode 44, i.e., the charged light-shielding particles 42 move to the second cavity 412. At this point, the charged light-shielding particles 42 can block the light emitted by the light-emitting unit 21, thereby achieving an anti-peeping effect. When a non-peeping effect is required, the first electrode 43 can be adjusted to a negative electrode and the second electrode 44 can be adjusted to a positive electrode. The charged light-shielding particles 42 can move to one end close to the first electrode 43 under the action of the electric field of the first electrode 43 and the second electrode 44, that is, the charged light-shielding particles 42 move to the first cavity 411. Since the first cavity 411 is located between the upper surface of the pixel definition layer 30 and the substrate 10, the charged light-shielding particles 42 will not block the light emitted by the light-emitting unit 21, thereby achieving a non-peeping effect.

[0049] It should be noted that by adjusting the electric field strength of the first electrode 43 and the second electrode 44, the position of the charged light-shielding particles 42 in the second cavity 412 can be controlled. When the position of the charged light-shielding particles 42 in the second cavity 412 gradually approaches the substrate 10, the light emitting unit 21 blocked by the charged light-shielding particles 42 decreases, and the viewing angle of the display panel 1 increases. Specifically, when the charged light-shielding particles 42 gather at the end of the second cavity 412 away from the substrate 10, the light emitting unit 21 blocks the most light from the charged light-shielding particles 42, and the viewing angle of the display panel 1 is the narrowest. When the charged light-shielding particles 42 gather in the middle of the second cavity 412, the light emitting unit 21 blocks less light, and the viewing angle of the display panel 1 increases compared to the case where the charged light-shielding particles 42 are located at the end of the second cavity 412 away from the substrate 10. When the charged light-shielding particles 42 gather at one end of the second cavity 412 close to the first cavity 411 , the light emitting unit 21 blocks the least light, and the viewing angle of the display panel 1 is increased compared to when the charged light-shielding particles 42 are located in the middle of the second cavity 412 .

[0050] That is to say, by adjusting the electric field strength of the first electrode 43 and the second electrode 44 , the anti-peeping angle in the anti-peeping mode can be adjusted to achieve a variety of different anti-peeping angles, further improving the flexibility of the anti-peeping mode.

[0051] In this embodiment, the first electrode 43 and the second electrode 44 are made of a conductive material, such as a metal or metal oxide. To reduce light blocking by the second electrode 44, the second electrode 44 can be made of a transparent conductive material, such as ITO (indium tin oxide), IZO (indium zinc oxide), IZTO (indium zinc tin oxide), IAZO (indium aluminum zinc oxide), IGZO (indium gallium zinc oxide), IGTO (indium gallium tin oxide), AZO (aluminum zinc oxide), ATO (antimony tin oxide), IGZTO (indium gallium zinc tin oxide), etc.

[0052] In this embodiment, the charged light-shielding particles 42 can be implemented using electrophoretic display technology. The principle of electrophoretic display technology relies on the movement of charged particles immersed in a plasma liquid, and the flipping or flowing of white and black charged particles to make sub-pixels brighter or darker. However, in this application, only black charged particles can be used, and by controlling the black charged particles arranged on one side of the light-emitting unit 21 to block the light from the light-emitting unit 21 at a wide viewing angle, an anti-peeping mode can be achieved.

[0053] In the display panel 1 of the present application, the volume of the charged light-shielding particles 42 is smaller than or equal to the volume of the first cavity 411 , and the volume of the charged light-shielding particles 42 is larger than or equal to the volume of the second cavity 412 .

[0054] In this embodiment, in order to allow the charged light-shielding particles 42 to fill the entire second cavity 412 and achieve the entire second cavity 412 blocking the light from the light-emitting unit 21, the volume of the charged light-shielding particles 42 can be larger than the second cavity 412. Accordingly, in order to prevent the charged light-shielding particles 42 from entering the second cavity 412 when in non-privacy protection mode, the volume of the first cavity 411 can be greater than or equal to the volume of the charged light-shielding particles 42, so that the first cavity 411 can accommodate all the charged light-shielding particles 42.

[0055] It should be understood that to achieve the aforementioned volume configuration, the height and cross-sectional area of ​​the first cavity 411 and the second cavity 412 can be adjusted. The height of the first cavity 411 and the second cavity 412 refers to the dimension in a direction perpendicular to the supporting surface of the substrate 10, and the cross-sectional area of ​​the first cavity 411 and the second cavity 412 refers to the area in a cross section parallel to the supporting surface of the substrate 10. The height of the first cavity 411 and the height of the second cavity 412 can be different, and the cross-sectional area of ​​the first cavity 411 and the cross-sectional area of ​​the second cavity 412 can be different.

[0056] In some embodiments, the volume of the first cavity 411 is greater than the volume of the second cavity 412 , the height of the first cavity 411 is less than the height of the second cavity 412 , and the cross-sectional area of ​​the first cavity 411 is greater than the cross-sectional area of ​​the second cavity 412 , but is not limited thereto.

[0057] In the display panel 1 of the present application, as Figure 2 As shown, the privacy protection portion 40 includes a solvent 45 disposed in a privacy protection cavity 41 , and charged light-shielding particles 42 are dispersed in the solvent 45 .

[0058] In this embodiment, a solvent 45 is provided in the anti-peep cavity 41. The charged light-shielding particles 42 can be dispersed in the solvent 45, so that the charged light-shielding particles 42 can be easily injected into the anti-peep cavity 41. The solvent 45 can be an electrophoretic liquid, such as a bistable electrophoretic fluid. The bistable electrophoretic fluid includes hydrocarbon solvents, such as polydialkylsiloxane, etc. The bistable electrophoretic fluid includes polyisobutylene or polylauryl acrylate, so that it has a bistable state. Due to the bistability of the bistable electrophoretic fluid, when the charged light-shielding particles 42 move to the appropriate position under the action of the electric field, after the electric field is turned off, the charged light-shielding particles 42 will remain in this position for a long time, such as several minutes, hours, days, etc. By setting the solvent 45 to a bistable electrophoretic fluid, the power consumption of the display panel 1 can be reduced.

[0059] In the display panel 1 of the present application, as Figure 2As shown, the display panel 1 includes an encapsulation layer 50, and the light-emitting unit 21 includes an anode 211, a light-emitting material layer 212, and a cathode 213 stacked in sequence. The cathode 213 is located on the side of the light-emitting material layer 212 facing away from the substrate 10. The pixel opening exposes the anode 211, the encapsulation layer 50 is arranged on the side of the cathode 213 facing away from the substrate 10, and the second cavity 412 is arranged in the encapsulation layer 50.

[0060] In this embodiment, the display panel 1 may be an OLED panel. The encapsulation layer 50 is disposed on the side of the cathode 213 facing away from the substrate 10. The encapsulation layer 50 may be formed by alternatingly stacking one or more organic layers 52 and one or more inorganic layers 51. For example, the organic layer 52 may be a single layer or multiple layers formed of any one of polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene, and polyacrylate. The inorganic layer 51 may be a single layer or multiple layers of a metal oxide or metal nitride, such as silicon nitride, aluminum oxide, silicon oxide, etc.

[0061] In this embodiment, the second cavity 412 at least partially penetrates the encapsulation layer 50 , that is, the second cavity 412 is at least partially disposed in the encapsulation layer 50 .

[0062] In this embodiment, the privacy cavity 41 can be formed after the encapsulation layer 50 is formed. The privacy cavity 41 can penetrate the encapsulation layer 50, the cathode 213, and the pixel definition layer 30, exposing the first electrode 43.

[0063] In the display panel 1 of the present application, the first electrode 43 is provided in the same layer as the anode 211 , and covers one end of the first cavity 411 away from the second cavity 412 ; the second electrode 44 is provided on the side of the encapsulation layer 50 away from the substrate 10 .

[0064] In this embodiment, the second electrode 44 can be entirely disposed on the side of the encapsulation layer 50 facing away from the substrate 10. With the above arrangement, the manufacturing process of the second electrode 44 can be simplified.

[0065] Optionally, in some embodiments, the first electrode 43 may be provided in the same layer as any conductive layer of the array layer 70. The thin film transistor 71 of the array layer 70 includes a drain electrode 711 and a gate electrode 712, and the first electrode 43 may be provided in the same layer as either the drain electrode 711 or the gate electrode 712.

[0066] Optionally, in some embodiments, the array layer 70 includes a shielding layer 72, which is disposed on a side of the thin-film transistor 71 that is close to the substrate 10. The shielding layer 72 is used to shield external signals from interfering with the thin-film transistor 71. The shielding layer 72 can be metal. The first electrode 43 can be disposed on the same layer as the shielding layer 72.

[0067] In the display panel 1 of the present application, as Figure 3As shown, Figure 3 Shown Figure 1 Another cross-sectional structure in . Figure 3 The cross-sectional structure and Figure 2 The cross-sectional structure of is different in that the second electrode 44. Figure 3 In the embodiment, the second electrode 44 includes a plurality of spaced electrode portions 441, each of which covers an end of the second cavity 412 facing away from the first cavity 411. With this arrangement, the second electrode 44 can be provided only in the region corresponding to the privacy cavity 41, thereby reducing the obstruction of the light emitted by the light-emitting unit 21 by the second electrode 44 and improving the display brightness of the display panel 1.

[0068] In this embodiment, the area of ​​the second electrode 44 may be slightly larger than the cross-sectional area of ​​the second cavity 412 , thereby further reducing the area of ​​the second electrode 44 and further reducing the shielding of the light emitted by the light-emitting unit 21 by the second electrode 44 .

[0069] In the display panel 1 of the present application, as Figure 4 As shown, Figure 4 FIG2 shows a schematic top view of a second display panel provided by an embodiment of the present application. The second display panel differs from the first display panel in the privacy protection portion 40. The privacy protection portion 40 includes multiple spaced privacy protection sub-portions 413, which are arranged around the light-emitting group 200. The privacy protection sub-portions 413 can be arranged along the first direction D1 or the second direction D2. Multiple privacy protection sub-portions 413 arranged along the first direction D1 and the second direction D2 are arranged around a light-emitting group 200. The angle between the first direction D1 and the second direction D2 can be an acute angle or a right angle.

[0070] In this embodiment, if Figure 4 As shown, the anti-peeping sub-section 413 can be arranged on the periphery of the light-emitting group 200. Figure 4 The case where one light-emitting group 200 includes one light-emitting unit 21 is shown.

[0071] In this embodiment, in order to achieve that the light on one side of the light emitting unit 21 can be completely blocked by the anti-peeping sub-portion 413, the width of the anti-peeping sub-portion 413 is greater than or equal to the width of the light emitting unit 21 in a top view. Figure 4The width of the light-emitting unit 21 refers to the dimension of the boundary line of the light-emitting unit 21, and the width of the anti-peeping sub-section 413 refers to the dimension of the anti-peeping sub-section 413 along the extension direction of the boundary line of the light-emitting unit 21. Specifically, the width of the anti-peeping sub-section 413 extending along the first direction D1 in the first direction D1 is greater than or equal to the width of the light-emitting unit 21 in the first direction D1, and the width of the anti-peeping sub-section 413 extending along the second direction D2 in the second direction D2 is greater than or equal to the width of the light-emitting unit 21 in the second direction D2. Through the above configuration, the anti-peeping sub-section 413 can completely block light from the side view of the light-emitting unit 21, achieving a better anti-peeping effect.

[0072] In the display panel 1 of the present application, as Figure 1 and Figure 5 As shown, the privacy protection portion 40 is arranged on the periphery of the light-emitting group 200 and is connected to the privacy protection portion 40 corresponding to any light-emitting group 200. This means that the privacy protection portion 40 can extend along the first direction D1 and the second direction D2, and the privacy protection portions 40 extending along the first direction D1 and the second direction D2 are connected at the intersection. The angle between the first direction D1 and the second direction D2 can be an acute angle or a right angle. By connecting the privacy protection portions 40, the process of injecting the charged light-shielding particles 42 dispersed in the solvent 45 into the privacy protection cavity 41 can be simplified. Only one injection is required, and the solvent 45 can flow in the connected privacy protection cavity 41, driving the charged light-shielding particles 42 to be dispersed in the privacy protection cavity 41.

[0073] In this embodiment, if Figure 1 As shown, Figure 1 The case where one light-emitting group 200 includes one light-emitting unit 21 is shown.

[0074] In this embodiment, if Figure 5 As shown, Figure 5 This is a schematic top view of the structure of a third display panel provided in an embodiment of the present application. The difference between the third display panel and the first display panel lies in the number of light-emitting units 21 included in each light-emitting group 200 . Figure 5 The case where one light-emitting group 200 includes four light-emitting units 21 is shown.

[0075] In this embodiment, if Figure 6 As shown, Figure 6 This is a schematic top view of the structure of the fourth display panel provided in an embodiment of the present application. The fourth display panel differs from the first display panel in the number of light-emitting units 21 included in each light-emitting group 200 . Figure 6 The case where one light-emitting group 200 includes two light-emitting units 21 is shown.

[0076] Optionally, in other embodiments, when the light-emitting group 200 includes other numbers of light-emitting units 21 , the configuration of the privacy protection portion 40 is similar.

[0077] In the display panel 1 of the present application, as Figure 2 As shown, the display panel 1 includes a cover plate 60 , and the second electrode 44 is disposed on a side of the cover plate 60 close to the substrate 10 .

[0078] In this embodiment, if Figure 2 As shown, the display panel 1 includes a cover plate 60, which may be made of ultra-thin glass or the like. The second electrode 44 may be formed on one side surface of the cover plate 60. By bonding the cover plate 60 provided with the second electrode 44 to the encapsulation layer 50, the anti-peep cavity 41 may be sealed.

[0079] Optionally, in some embodiments, the cover plate 60 provided with the second electrode 44 and the encapsulation layer 50 can be bonded by lamination and then curing. Specifically, an encapsulation adhesive (not shown) is applied to the second electrode 44, the cover plate 60 is pressed together with the encapsulation layer 50, and then the encapsulation adhesive is cured in sections using UV light or thermal curing. This sectioned curing can improve the compatibility of the encapsulation adhesive with the charged light-shielding particles 42 and the co-solvent 45 in the anti-peep cavity 41, thereby preventing dissolution of the encapsulation adhesive and the charged light-shielding particles 42.

[0080] like Figure 7 As shown, the present application further provides a display terminal 2 , which includes the above-mentioned display panel 1 .

[0081] In this embodiment, if Figure 7 As shown, the display terminal 2 includes a display panel 1 and a terminal body 3, and the display panel 1 and the terminal body 3 are combined into one body.

[0082] In this embodiment, the display terminal 2 can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, or a navigator.

[0083] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The above is a detailed introduction to the display panel and display terminal provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: substrate; a pixel definition layer having a plurality of pixel openings; a light-emitting layer disposed on one side of the substrate, the light-emitting layer comprising a plurality of light-emitting groups, each of the light-emitting groups comprising at least one light-emitting unit, and one light-emitting unit being disposed corresponding to one pixel opening; A privacy protection portion is provided between two adjacent light-emitting groups, wherein a privacy protection cavity is provided in the privacy protection portion, wherein the privacy protection cavity includes a first cavity and a second cavity that are connected, wherein the first cavity is located between a surface of the pixel definition layer facing away from the substrate and the substrate, and the second cavity is located on a side of the pixel definition layer facing away from the substrate; the privacy protection portion includes: a first electrode, disposed at an end of the first cavity facing away from the second cavity; a second electrode, disposed at an end of the second cavity facing away from the first cavity; and The charged light-shielding particles are disposed in the privacy cavity, and are configured to move in the privacy cavity under the driving of the electric field formed by the first electrode and the second electrode.

2. The display panel according to claim 1, wherein: The volume of the charged light-shielding particles is smaller than or equal to the volume of the first cavity, and the volume of the charged light-shielding particles is larger than or equal to the volume of the second cavity.

3. The display panel according to claim 1, wherein: The display panel includes an encapsulation layer, the light-emitting unit includes an anode, a light-emitting material layer, and a cathode stacked in sequence, the cathode is located on the side of the light-emitting material layer facing away from the substrate, the pixel opening exposes the anode, the encapsulation layer is arranged on the side of the cathode facing away from the substrate, and the second cavity is arranged in the encapsulation layer.

4. The display panel according to claim 3, wherein: The first electrode is arranged on the same layer as the anode, and covers one end of the first cavity away from the second cavity; the second electrode is arranged on a side of the packaging layer away from the substrate.

5. The display panel according to claim 4, wherein: The entire surface of the second electrode is disposed on a side of the packaging layer facing away from the substrate.

6. The display panel according to claim 4, wherein: The second electrode includes a plurality of spaced-apart electrode portions, and each electrode portion covers an end of the second cavity facing away from the first cavity.

7. The display panel according to claim 1, wherein: The anti-peeping portion includes a plurality of spaced anti-peeping sub-portions, which are arranged around the light-emitting group. In a top view, the width of one of the anti-peeping sub-portions is greater than or equal to the width of one of the light-emitting units.

8. The display panel according to claim 1, wherein: The anti-peeping portion is arranged on the periphery of the light-emitting group and is connected to the anti-peeping portion corresponding to any one of the light-emitting groups.

9. The display panel according to claim 1, wherein: One of the light-emitting groups includes one light-emitting unit, two light-emitting units, or four light-emitting units.

10. A display terminal, characterized in that: The display terminal includes the display panel according to any one of claims 1 to 9.

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