Display panel and display device

Abstract

A display panel (10) and a display device (1). The display panel (10) comprises a pixel unit (12) and a peep-proof unit (13). The pixel unit (12) has a top light exit surface (121) and a peripheral light exit surface (122); a first electrode (132) and a second electrode (133) of the peep-proof unit (13) control a peep-proof particle (131) to move towards the peripheral light exit surface (122) or move away from the peripheral light exit surface (122); when the display panel (10) is in a first state, a distance D 1 is formed between the central point of the peep-proof particle (131) and the peripheral light exit surface (122) of the pixel unit (12), and the display panel (10) has a first light exit viewing angle θ1; when the display panel (10) is in a second state, a distance D2 is formed between the central point of the peep-proof particle (131) and the peripheral light exit surface (122), the display panel (10) has a second light exit viewing angle θ2, θ1 is less than θ2, and D1 is less than D2, so that the display panel (10) can flexibly switch between a sharing mode and a peep-proof mode.

Description

Display panel and display device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 5, 2023, with application number 2023111331492 and application name “Display Panel and Display Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0003] With the continuous development of display technology, display panels are widely used in various fields such as consumer electronics, industrial equipment, laboratory instruments, medical-related, and automotive accessories. For consumers who need to protect business secrets or personal privacy, the anti-peeping function of display panels is crucial.

[0004] However, the display panels in existing anti-peeping technologies usually have a relatively single display viewing angle, which cannot meet the consumer's experience needs in different scenarios.

[0005] Application Contents

[0006] In view of this, the present application provides a display panel and a display device, so that the display panel can achieve multi-angle controllable anti-peeping.

[0007] In a first aspect, the present application provides a display panel, comprising:

[0008] substrate;

[0009] A pixel unit, the pixel unit being carried on the substrate, the pixel unit having a top light emitting surface and a peripheral light emitting surface connected by a bend; and

[0010] an anti-privacy unit, the anti-privacy unit being carried on the substrate and disposed adjacent to the peripheral light-emitting surface, the anti-privacy unit comprising anti-privacy particles and a first electrode and a second electrode disposed opposite to each other, the first electrode, the second electrode, and the pixel unit forming a cavity, the cavity being configured to accommodate the anti-privacy particles, the first electrode and the second electrode being loaded with a control signal to control the anti-privacy particles to move in a direction approaching or away from the peripheral light-emitting surface;

[0011] The display panel has a first state and a second state. When the display panel is in the first state, along the arrangement direction of the pixel unit and the anti-peeping unit, there is a distance range D1 between the center point of the anti-peeping particle and the peripheral light emitting surface of the pixel unit, and the display panel has a first light emitting viewing angle θ1; when the display panel is in the second state, along the arrangement direction of the pixel unit and the anti-peeping unit, there is a distance range D2 between the center point of the anti-peeping particle and the peripheral light emitting surface of the pixel unit, and the display panel has a second light emitting viewing angle θ2, wherein θ1<θ2, and D1<D2.

[0012] The anti-peeping particles carry a first charge and a second charge, and the polarity of the first charge is different from the polarity of the second charge;

[0013] When the display panel switches from the first state to the second state, the first electrode is loaded with a first polarity signal, the second electrode is loaded with a second polarity signal, and a first electric field is formed between the second electrode and the first electrode to serve as the control signal. Under the action of the first electric field, the anti-peeping particles move in a direction away from the peripheral light-emitting surface.

[0014] When the display panel switches from the second state to the first state, the first electrode is loaded with a second polarity signal, the second electrode records the first polarity signal, and a second electric field is formed between the second electrode and the first electrode to serve as the control signal. The second electric field is opposite to the direction of the first electric field, and the anti-peeping particles move toward the direction close to the peripheral light-emitting surface under the action of the second electric field.

[0015] The anti-peeping particle is an opaque sphere having a first portion and a second portion symmetrically arranged. The first portion carries a first charge, and the second portion carries a second charge. The polarity of the first charge is different from the polarity of the second charge.

[0016] The pixel unit of the display panel includes a first pixel unit and a second pixel unit that are spaced apart from each other, and the anti-peeping unit is disposed between the first pixel unit and the second pixel unit;

[0017] The anti-peeping particles of the anti-peeping unit include first anti-peeping particles and second anti-peeping particles, the first anti-peeping particles are adjacent to the first pixel unit, and the second anti-peeping particles are adjacent to the second pixel unit. When the display panel is in a first state, there is a first distance L1 between the first anti-peeping particles and the second anti-peeping particles; when the display panel is in a second state, there is a second distance L2 between the first anti-peeping particles and the second anti-peeping particles, wherein L2<L1.

[0018] The display panel has a display surface, the first electrode is arranged adjacent to the display surface, the second electrode is arranged on a side of the first electrode away from the display surface, and the first electrode is made of a light-transmitting material, while the second electrode is made of a light-shielding material.

[0019] The pixel unit includes a color resist layer and a first protection layer. The first protection layer is disposed adjacent to the substrate, and the color resist layer is disposed on a side of the first protection layer away from the substrate.

[0020] The display panel further includes a second protective layer, which is disposed on surfaces of the pixel unit and the anti-peeping unit facing away from the substrate.

[0021] Among them, the pixel unit includes an anode, a light-emitting layer and a cathode, the light-emitting layer is sandwiched between the anode and the cathode, the anode transmits holes to the light-emitting layer, and the cathode transmits electrons to the light-emitting layer, and the light-emitting layer emits light under the joint action of the anode and the cathode.

[0022] In a second aspect, the present application further provides a display device, comprising a processor and the display panel;

[0023] The processor controls the control signals applied to the first and second electrodes so that the display panel has the first and second states and can switch between the first and second states. The display panel is provided with an anti-peeping unit on the peripheral light-emitting surface of the pixel unit. The anti-peeping unit includes anti-peeping particles and a first electrode and a second electrode arranged opposite to each other. The first and second electrodes are loaded with control signals to control the anti-peeping particles to move in a direction close to or away from the peripheral light-emitting surface, so that the display panel has the first and second states. When the display panel is in the first state, the center point of the anti-peeping particle is at a distance range D1 from the peripheral light-emitting surface of the pixel unit, and the display panel has a first light-emitting viewing angle θ1. When the display panel is in the second state, the center point of the anti-peeping particle is at a distance range D2 from the peripheral light-emitting surface of the pixel unit, and the display panel has a second light-emitting viewing angle θ2, wherein θ1<θ2, and D1<D2. By controlling the different movement positions of the anti-privacy particles, the display panel can be adjusted to have different light output angles, enabling flexible switching between sharing mode and anti-privacy mode, and providing a variety of different display angles for users to choose from. When the display panel is in a first state, it can have a good anti-privacy effect to protect user privacy. When the display panel is in a second state, it can have a normal display state to meet the user's usage experience. At the same time, the display panel can also achieve multi-angle controllable anti-privacy, thereby effectively expanding the application range of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] FIG1 is a schematic structural diagram of a display device according to an embodiment of the present application;

[0026] FIG2 is a schematic diagram of a partial structure of the display device provided in FIG1 along the AA line;

[0027] FIG3 is a schematic diagram of a partial structure of a display device along line AA in accordance with the first embodiment of the present application;

[0028] FIG4 is a partial structural schematic diagram of a display device along line AA in a second embodiment of the present application;

[0029] FIG5 is a schematic diagram showing the principle of switching a display panel from a first state to a second state according to an embodiment of the present application;

[0030] FIG6 is a schematic diagram showing the principle of switching the display panel from the second state to the first state according to an embodiment of the present application;

[0031] FIG7 is a schematic diagram of a partial structure of a display device along line AA in a cross section according to a third embodiment of the present application;

[0032] FIG8 is a schematic diagram of a portion of the structure of a pixel unit and a privacy protection unit according to a third embodiment of the present application;

[0033] FIG9 is a schematic structural diagram of a pixel unit and a privacy protection unit according to a third embodiment of the present application;

[0034] FIG10 is a partial structural schematic diagram of a cross section of a display device along line AA according to a fourth embodiment of the present application;

[0035] FIG11 is a schematic diagram of a partial structure of a pixel unit and a privacy protection unit according to a fourth embodiment of the present application;

[0036] FIG12 is a schematic diagram of a partial structure of a display device along line AA in a fifth embodiment of the present application;

[0037] FIG13 is a schematic diagram of the structural framework of a display device according to an embodiment of the present application.

[0038] Description of reference numerals:

[0039] 1-display device, 10-display panel, 20-processor, 11-substrate, 12-pixel unit, 13-peep-proof unit, 15-display surface, 16-second protective layer, 121-top light-emitting surface, 122-side light-emitting surface, 123-first pixel unit, 124-second pixel unit, 125-color resist layer, 126-first protective layer, 127-anode, 128-light-emitting layer, 129-cathode, 131-peep-proof particle, 132-first electrode, 133-second electrode, 134-cavity, 1311-first portion, 1312-second portion, 1313-first peer-proof particle, 1314-second peer-proof particle. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0042] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] Please refer to Figures 1, 2, 3 and 4. Figure 1 is a schematic diagram of the structure of a display device according to an embodiment of the present application. Figure 2 is a schematic diagram of a partial structure of the display device provided in Figure 1 along the AA line. Figure 3 is a schematic diagram of a partial structure of the display device according to Example 1 of the present application along the AA line. Figure 4 is a schematic diagram of a partial structure of the display device according to Example 2 of the present application along the AA line. The present application provides a display panel 10, which includes a substrate 11, a pixel unit 12 and an anti-peep unit 13. The pixel unit 12 is carried on the substrate 11, and the pixel unit 12 has a top light-emitting surface 121 and a peripheral light-emitting surface 122 that are connected by bending. The privacy protection unit 13 is supported on the substrate 11 and disposed adjacent to the peripheral light emitting surface 122. The privacy protection unit 13 includes privacy protection particles 131 and a first electrode 132 and a second electrode 133 disposed opposite each other. The first electrode 132, the second electrode 133, and the pixel unit 12 form a cavity 134, which is used to accommodate the privacy protection particles 131. The first electrode 132 and the second electrode 133 are coupled to control signals to control the movement of the privacy protection particles 131 toward or away from the peripheral light emitting surface 122. The display panel 10 has a first state and a second state. When the display panel 10 is in the first state, a distance D1 is defined between the center point of the privacy protection particle 131 and the peripheral light emitting surface 122 of the pixel unit 12 along the arrangement direction of the pixel units 12 and the privacy protection unit 13. The display panel 10 has a first light emitting viewing angle θ1. When the display panel 10 is in the second state, along the arrangement direction of the pixel unit 12 and the anti-peeping unit 13, there is a distance range D2 between the center point of the anti-peeping particle 131 and the peripheral light-emitting surface 122 of the pixel unit 12, and the display panel 10 has a second light-emitting viewing angle θ2, wherein θ1<θ2, and D1<D2.

[0044] Optionally, the substrate 11 may be made of glass or other transparent materials, etc. The substrate 11 is disposed adjacent to the display surface 15 of the display panel 10 .

[0045] Optionally, the pixel unit 12 has a top light emitting surface 121 and a peripheral light emitting surface 122 that are connected by a bend, and the top light emitting surface 121 of the pixel unit 12 is disposed adjacent to the substrate 11. The privacy protection unit 13 is adjacent to the peripheral light emitting surface 122, and the privacy protection unit 13 can be disposed in contact with the peripheral light emitting surface 122. Light emitted from the pixel unit 12 from the top light emitting surface 121 and the peripheral light emitting surface 122 can partially be emitted through the substrate 11, and partially be emitted through the privacy protection unit 13 or blocked by the privacy protection unit 13.

[0046] Optionally, the first electrode 132 of the privacy protection unit 13 is attached to the peripheral light-emitting surface 122 of the pixel unit 12, and the second electrode 133 is attached to the peripheral light-emitting surface 122 of the pixel unit 12, with the second electrode 133 spaced apart from the first electrode 132. The first electrode 132, the second electrode 133, and the pixel unit 12 together enclose a cavity 134, and the privacy protection particles 131 are housed in the cavity 134.

[0047] Optionally, the privacy protection particles 131 may or may not abut against the first electrode 132 , and the privacy protection particles 131 may or may not abut against the second electrode 133 .

[0048] Optionally, the privacy particles 131 are made of an opaque material. When light is incident on the privacy particles 131 , the privacy particles 131 may absorb or reflect the light, thereby preventing the light from passing through the privacy particles 131 .

[0049] Further optionally, the number of the anti-peeping particles 131 can be but is not limited to one, two, three, four, five, or other numbers. It can be understood that the number setting of the anti-peeping particles 131 should not be a limitation on the display panel 10 provided in this embodiment.

[0050] Optionally, the shape of the privacy protection particles 131 may be, but is not limited to, spherical or other shapes. In the schematic diagram of this embodiment, the shape of the privacy protection particles 131 is spherical as an example.

[0051] Further optionally, the diameter of the privacy particles 131 may be, but is not limited to, 50 μm, 100 μm, 150 μm, 200 μm, 300 μm, or other values. Preferably, the diameter of the privacy particles 131 may be less than or equal to 100 μm. It should be noted that the diameter of the privacy particles 131 may be adjusted accordingly according to the specifications of the display panel 10 in actual application, and the diameter of the privacy particles 131 should not be a limitation of the display panel 10 provided in this embodiment.

[0052] Optionally, the first electrode 132 and the second electrode 133 are loaded with control signals to control the anti-peeping particles 131 to move in a direction close to or away from the peripheral light-emitting surface 122, so that the display panel 10 has a first state and a second state.

[0053] Optionally, the privacy protection particles 131 may carry multiple charges, each of which may have different polarities. The control signal may be an electric field, i.e., voltages of different polarities or magnitudes are applied to the first and second electrodes 132, 133 to form an electric field between the first and second electrodes 132, 133. Because the privacy protection particles 131 carry multiple charges of different polarities, they can rotate and move when subjected to the electric field.

[0054] Specifically, the display panel 10 has a first state and a second state, wherein the first state may be a privacy state and the second state may be a sharing state. When the display panel 10 needs to be in privacy mode, i.e., enters the first state, the privacy particles 131 may be located adjacent to the peripheral light emitting surface 122, and a distance D1 is defined between the center of the privacy particles 131 and the peripheral light emitting surface 122.

[0055] Optionally, along the arrangement direction of the pixel unit 12 and the privacy protection unit 13 , the distance range D1 may be, but is not limited to, the shortest distance between the center point of the privacy protection particle 131 and the peripheral light emitting surface 122 of the pixel unit 12 .

[0056] Further optionally, when the anti-peeping particle 131 is arranged adjacent to the peripheral light-emitting surface 122, the light emitted from the peripheral light-emitting surface 122 of the pixel unit 12 is incident on the anti-peeping unit 13 and is at least partially blocked by the anti-peeping particle 131, thereby reducing the light emitted from the display panel 10 from the side viewing angle, so that the display panel 10 has a first light-emitting viewing angle θ1 (Figure 3), that is, the display panel 10 realizes a narrow viewing angle anti-peeping mode.

[0057] Specifically, when the display panel 10 needs to turn on the sharing mode, that is, enter the second state, the anti-peeping particle 131 can be located away from the peripheral light-emitting surface 122, and the center point of the anti-peeping particle 131 and the peripheral light-emitting surface 122 have a distance range D2.

[0058] Optionally, along the arrangement direction of the pixel units 12 and the privacy protection unit 13, the distance range D2 may be, but is not limited to, the shortest distance between the center point of the privacy protection particle 131 and the peripheral light-emitting surface 122 of the pixel unit 12. The value of the distance range D2 may be greater than the value of the distance range D1, i.e., D1 < D2.

[0059] Further optionally, when the anti-peeping particles 131 are arranged away from the peripheral light-emitting surface 122, the light emitted from the peripheral light-emitting surface 122 of the pixel unit 12 is incident on the anti-peeping unit 13, and is less blocked or not blocked by the anti-peeping particles 131, so that the light emitted from the display panel 10 from the side viewing angle will not or almost will not be reduced, so that the display panel 10 has a second light-emitting viewing angle θ2 (Figure 4), wherein θ1<θ2, so that the display panel 10 realizes a wide-viewing angle sharing mode.

[0060] Further optionally, by adjusting the control signals loaded on the first electrode 132 and the second electrode 133, the display panel 10 can be switched from the first state to the second state, and from the second state to the first state, thereby realizing flexible switching of different display viewing angles of the display panel 10.

[0061] Further optionally, by adjusting the control signals loaded on the first electrode 132 and the second electrode 133, it is also possible to provide other distance ranges between the center point of the anti-peeping particle 131 and the peripheral side surface of the pixel unit 12 along the arrangement direction of the pixel unit 12 and the anti-peeping unit 13, so that the display panel 10 can have a variety of different display viewing angles for users to choose from, so that the display panel 10 can be suitable for a variety of different scenarios.

[0062] In summary, the display panel 10 provided in this embodiment has a privacy protection unit 13 disposed on the peripheral light-emitting surface 122 of the pixel unit 12. The privacy protection unit 13 includes privacy protection particles 131 and a first electrode 132 and a second electrode 133 disposed opposite each other. The first electrode 132 and the second electrode 133 are loaded with control signals to control the privacy protection particles 131 to move toward or away from the peripheral light-emitting surface 122, thereby enabling the display panel 10 to have a first state and a second state. When the display panel 10 is in the first state, a distance range D1 is defined between the center point of the privacy protection particle 131 and the peripheral light-emitting surface 122 of the pixel unit 12, and the display panel 10 has a first light-emitting viewing angle θ1. When the display panel 10 is in the second state, the center point of the anti-peeping particle 131 has a distance range D2 from the peripheral light-emitting surface 122 of the pixel unit 12, and the display panel 10 has a second light-emitting viewing angle θ2, wherein θ1 < θ2, and D1 < D2. By controlling the different movement positions of the anti-peeping particles 131, the display panel 10 can be adjusted to have different light-emitting viewing angles, thereby achieving flexible switching between the sharing mode and the anti-peeping mode, and can have a variety of different display viewing angles for users to choose from. When the display panel 10 is in the first state, it can have a good anti-peeping effect to protect user privacy. When the display panel 10 is in the second state, it can have a normal display state to meet the user's usage experience. At the same time, the display panel 10 can also achieve multi-angle controllable anti-peeping, thereby effectively expanding the scope of application of the display panel 10.

[0063] Please refer to Figures 2 and 5. Figure 5 is a schematic diagram of the principle of the display panel switching from the first state to the second state according to an embodiment of the present application. The anti-peeping particle 131 carries a first charge and a second charge, and the polarity of the first charge is different from the polarity of the second charge. When the display panel 10 switches from the first state to the second state, the first electrode 132 is loaded with a first polarity signal, and the second electrode 133 is loaded with a second polarity signal. A first electric field is formed between the second electrode 133 and the first electrode 132 as the control signal. Under the action of the first electric field, the anti-peeping particle 131 moves in a direction away from the peripheral light-emitting surface 122.

[0064] Optionally, the first charge may be a positive ("+") charge or a negative ("-") charge. The second charge may be a negative ("-") charge or a positive ("+") charge, and the polarity of the first charge is different from the polarity of the second charge.

[0065] Optionally, when the display panel 10 switches from the first state to the second state, that is, when the display panel 10 needs to switch from the shared state to the anti-peeping state, the first electrode 132 is loaded with a first polarity signal, and the second electrode 133 is loaded with a second polarity signal, and a first electric field is formed between the second electrode 133 and the first electrode 132 as the control signal.

[0066] Optionally, the first polarity signal may be a positive polarity signal or a negative polarity signal, the second polarity signal may be a negative polarity signal or a positive polarity signal, and the polarity of the second polarity signal may be, but is not limited to, different from the polarity of the first polarity signal.

[0067] Optionally, in a specific embodiment of the present application, the first charge is a positive charge, and the second charge is a negative charge. When the display panel 10 is in the first state, the privacy-preventing particles 131 are disposed adjacent to the peripheral light-emitting surface 122. The portion of the privacy-preventing particles 131 carrying the first charge faces the first electrode 132, and the portion of the privacy-preventing particles 131 carrying the second charge faces the second electrode 133. When the display panel 10 needs to switch from the first state to the second state, the first electrode 132 is loaded with a first polarity signal having a positive polarity, and the second electrode 133 is loaded with a second polarity signal having a negative polarity. Therefore, when the display panel 10 needs to switch from the first state to the second state, due to the charge polarity effect of like charges repelling and opposite charges attracting, the part of the anti-peeping particle 131 with the first charge and the part with the second charge both rotate clockwise, so that the anti-peeping particle 131 rotates and moves to a position away from the peripheral light-emitting surface 122, thereby expanding the viewing angle of the display panel 10, that is, switching from the first anti-peeping state to the shared second state, thereby flexibly adjusting the display panel 10 to have different light-emitting viewing angles, and realizing free switching between the shared mode and the anti-peeping mode.

[0068] It should be noted that, in other embodiments of the present application, the portion of the anti-peeping particle 131 carrying the first charge and the portion carrying the second charge may also be directed to other positions, and the first electrode 132 and the second electrode 133 may also be loaded with signals of other polarities, as long as the anti-peeping particle 131 can move from a position adjacent to the peripheral light-emitting surface 122 to a position away from the peripheral light-emitting surface 122, and the present application does not impose any restrictions on this.

[0069] Please refer to Figures 2 and 6. Figure 6 is a schematic diagram illustrating the principle of switching the display panel from the second state to the first state according to an embodiment of the present application. When the display panel 10 switches from the second state to the first state, the first electrode 132 is loaded with a second polarity signal, the second electrode 133 is loaded with a first polarity signal, and a second electric field is formed between the second electrode 133 and the first electrode 132 to serve as the control signal. The second electric field is in the opposite direction to the first electric field, and the privacy protection particles 131 move toward the peripheral light-emitting surface 122 under the influence of the second electric field.

[0070] Optionally, when the display panel 10 switches from the second state to the first state, that is, when the display panel 10 needs to switch from the anti-peeping state to the shared state, the first electrode 132 is loaded with a second polarity signal, and the second electrode 133 is loaded with a first polarity signal. A second electric field is formed between the second electrode 133 and the first electrode 132 as the control signal, and the direction of the second electric field is opposite to that of the first electric field.

[0071] Optionally, the first polarity signal may be a negative polarity signal or a positive polarity signal, the second polarity signal may be a positive polarity signal or a negative polarity signal, and the polarity of the second polarity signal may be, but is not limited to, different from the polarity of the first polarity signal.

[0072] Optionally, in a specific embodiment of the present application, the first charge of the privacy-prevention particle 131 is a positive charge, and the second charge of the privacy-prevention particle 131 is a negative charge. When the display panel 10 is in the second state, the privacy-prevention particle 131 is disposed adjacent to and away from the peripheral light-emitting surface 122. The portion of the privacy-prevention particle 131 carrying the first charge faces the side away from the peripheral light-emitting surface 122, and the portion of the privacy-prevention particle 131 carrying the second charge faces the side adjacent to the peripheral light-emitting surface 122. When the display panel 10 needs to switch from the second state to the first state, the first electrode 132 is loaded with a first polarity signal having a negative polarity, and the second electrode 133 is loaded with a second polarity signal having a positive polarity. Therefore, when the display panel 10 needs to switch from the second state to the first state, due to the charge polarity effect of like charges repelling and opposite charges attracting, the part of the anti-peeping particle 131 with the first charge and the part with the second charge both rotate counterclockwise, causing the anti-peeping particle 131 to rotate and move to a position adjacent to the peripheral light-emitting surface 122, thereby narrowing the viewing angle of the display panel 10, that is, switching from the shared second state to the anti-peeping first state, thereby flexibly adjusting the display panel 10 to have different light-emitting viewing angles, and realizing free switching between the shared mode and the anti-peeping mode.

[0073] It should be noted that, in other embodiments of the present application, the portion of the anti-peeping particle 131 carrying the first charge and the portion carrying the second charge may also be directed to other positions, and the first electrode 132 and the second electrode 133 may also be loaded with signals of other polarities, as long as the anti-peeping particle 131 can move from a position adjacent to the peripheral light-emitting surface 122 to a position away from the peripheral light-emitting surface 122, and the present application does not impose any restrictions on this.

[0074] Please refer again to Figures 5 and 6. The privacy particle 131 is an opaque sphere having a symmetrically arranged first portion 1311 and a second portion 1312. The first portion 1311 carries a first charge, and the second portion 1312 carries a second charge. The polarity of the first charge is different from the polarity of the second charge.

[0075] Optionally, the material of the privacy-prevention particles 131 may be, but is not limited to, carbon black or other dark materials, so that light does not pass through the privacy-prevention particles 131 .

[0076] Optionally, the first charge may be a positive ("+") charge or a negative ("-") charge. The second charge may be a negative ("-") charge or a positive ("+") charge, and the polarity of the first charge is different from the polarity of the second charge.

[0077] Optionally, in this embodiment, the shape of the privacy protection particle 131 is spherical, and the privacy protection particle 131 has a symmetrically arranged first portion 1311 and a second portion 1312. The first portion 1311 can be a hemisphere, and the second portion 1312 can be another portion of a hemisphere. The first portion 1311 carries a first charge, and the second portion 1312 carries a second charge. Therefore, when an electric field is applied, the rotation and movement of the privacy protection particle 131 can be controlled by the first electrode 132 and the second electrode 133, thereby controlling the light emission direction of the display panel 10 and achieving a multi-angle controllable privacy protection effect.

[0078] Please refer to Figures 7, 8, 9, 10, and 11. Figure 7 is a schematic diagram of a partial structure of a display device along line AA in accordance with a third embodiment of the present application. Figure 8 is a schematic diagram of a partial structure of a pixel unit and a privacy protection unit in accordance with a third embodiment of the present application. Figure 9 is a schematic diagram of a partial structure of a pixel unit and a privacy protection unit in accordance with a third embodiment of the present application. Figure 10 is a schematic diagram of a partial structure of a display device along line AA in accordance with a fourth embodiment of the present application. Figure 11 is a schematic diagram of a partial structure of a pixel unit and a privacy protection unit in accordance with a fourth embodiment of the present application. The pixel unit 12 of the display panel 10 includes a first pixel unit 123 and a second pixel unit 124 spaced apart from each other, with the privacy protection unit 13 disposed between the first pixel unit 123 and the second pixel unit 124. The privacy protection particles 131 of the privacy protection unit 13 include first privacy protection particles 1313 and second privacy protection particles 1314. The first privacy protection particles 1313 are adjacent to the first pixel unit 123, and the second privacy protection particles 1314 are adjacent to the second pixel unit 124. When the display panel 10 is in a first state, a first distance L1 is defined between the first privacy protection particles 1313 and the second privacy protection particles 1314. When the display panel 10 is in a second state, a second distance L2 is defined between the first privacy protection particles 1313 and the second privacy protection particles 1314, where L2 < L1.

[0079] Optionally, the anti-peeping unit 13 is disposed between the first pixel unit 123 and the second pixel unit 124 , and one end of the anti-peeping unit 13 abuts against the first pixel unit 123 , and the other end of the anti-peeping unit 13 abuts against the second pixel unit 124 .

[0080] Optionally, the privacy protection particles 131 include first privacy protection particles 1313 and second privacy protection particles 1314. Optionally, the number of the first privacy protection particles 1313 may be, but is not limited to, one, two, three, four, five, or other numbers.

[0081] Optionally, the number of the second privacy protection particles 1314 may be, but is not limited to, one, two, three, four, five, or other numbers. Preferably, the number of the second privacy protection particles 1314 is equal to the number of the first privacy protection particles 1313 .

[0082] Optionally, the first privacy protection particles 1313 are disposed adjacent to the first pixel unit 123 compared to the second privacy protection particles 1314 , and the second privacy protection particles 1314 are disposed adjacent to the second pixel unit 124 compared to the first privacy protection particles 1313 .

[0083] Optionally, when the display panel 10 is in the first state, a first distance L1 is defined between the first privacy protection particles 1313 and the second privacy protection particles 1314. The first distance L1 may be, but is not limited to, the shortest distance between the first privacy protection particles 1313 and the second privacy protection particles 1314 along the arrangement direction of the first pixel units 123 and the second pixel units 124. The first privacy protection particles 1313 may be adjacent to or abut the first pixel units 123, and the second privacy protection particles 1314 may be adjacent to or abut the second pixel units 124, such that light emitted from the first pixel units 123 from a side view is at least partially blocked by the first privacy protection particles 1313, and light emitted from the second pixel units 124 from a side view is at least partially blocked by the second privacy protection particles 1314, thereby maintaining the display panel 10 in the privacy protection state.

[0084] Optionally, when the display panel 10 is in the second state, a second distance L2 is defined between the first privacy-prevention particle 1313 and the second privacy-prevention particle 1314. The second distance L2 may be, but is not limited to, the shortest distance between the first privacy-prevention particle 1313 and the second privacy-prevention particle 1314 along the arrangement direction of the first pixel unit 123 and the second pixel unit 124, and L2 < L1. The first privacy-prevention particle 1313 may face away from the first pixel unit 123, and the second privacy-prevention particle 1314 may face away from the second pixel unit 124. In other words, the first privacy-prevention particle 1313 and the second privacy-prevention particle 1314 are located adjacent to the center of the gap between the first pixel unit 123 and the second pixel unit 124. As a result, light emitted from the first pixel unit 123 from a side view angle is less likely to be blocked by, or not blocked by, the first privacy-prevention particles 1313, and light emitted from the second pixel unit 124 from a side view angle is less likely to be blocked by, or not blocked by, the second privacy-prevention particles 1314, placing the display panel 10 in a shared state. Furthermore, the display panel 10 may include multiple groups of pixel units 12 and multiple groups of privacy-prevention units 13, enabling the display panel 10 to flexibly switch between an overall privacy-prevention state and a shared state. This ensures that when the display panel 10 switches to the privacy-prevention state, it has a good privacy-prevention effect to protect user privacy, and can also switch to a normal display state to meet the user's usage experience in different scenarios.

[0085] Optionally, in one embodiment of the present application, when the display panel 10 switches from the first state to the second state, the first privacy protection particle 1313 may rotate clockwise under the control signal applied to the first electrode 132 and the second electrode 133, and move in a direction from the first pixel unit 123 to the second pixel unit 124. The second privacy protection particle 1314 may rotate counterclockwise under the control signal applied to the first electrode 132 and the second electrode 133, and move in a direction from the second pixel unit 124 to the first pixel unit 123.

[0086] Optionally, in one embodiment of the present application, during the process of the display panel 10 switching from the second state to the first state, the second privacy protection particle 1314 may rotate counterclockwise under the control signal applied to the first electrode 132 and the second electrode 133, and move in the direction from the second pixel unit 124 to the first pixel unit 123. The second privacy protection particle 1314 may rotate clockwise under the control signal applied to the first electrode 132 and the second electrode 133, and move in the direction from the first pixel unit 123 to the second pixel unit 124.

[0087] It should be noted that the first anti-peeping particle 1313 and the second anti-peeping particle 1314 can have different motion trajectories under the action of the control signal due to the different charge distribution positions, or the first electrode 132 and the second electrode 133 can be partitioned to achieve the different motion trajectories of the first anti-peeping particle 1313 and the second anti-peeping particle 1314. This application does not limit this.

[0088] 2 again, the display panel 10 has a display surface 15, the first electrode 132 is disposed adjacent to the display surface 15, and the second electrode 133 is disposed on a side of the first electrode 132 facing away from the display surface 15. The first electrode 132 is made of a light-transmitting material, and the second electrode 133 is made of a light-shielding material.

[0089] Optionally, the material of the first electrode 132 may be, but is not limited to, indium tin oxide (ITO) or other transparent conductive materials.

[0090] Optionally, the first electrode 132 is arranged adjacent to the display surface 15, and the first electrode 132 is a light-transmitting material, so that the display panel 10 can ensure a normal light emission effect, and the anti-peeping particles 131 in the anti-peeping unit 13 can realize the effect of adjusting the anti-peeping viewing angle at multiple angles.

[0091] Optionally, the material of the second electrode 133 may be, but is not limited to, opaque metal or other materials.

[0092] Optionally, the second electrode 133 may be disposed between two adjacent pixel units 12 , the second electrode 133 is disposed on a side of the first electrode 132 away from the display surface 15 , and the second electrode 133 is made of a light-shielding material.

[0093] Preferably, one end of the second electrode 133 abuts one of two adjacent pixel units 12, and the other end of the second electrode 133 abuts the other of the two adjacent pixel units 12. This allows the second electrode 133 to control the movement of the privacy-preventing particles 131 while also replacing the black matrix (BM) structure in the conventional display panel 10. In this embodiment, the display panel 10 not only implements privacy-preventing functionality but also simplifies the manufacturing process, avoids light leakage, and ensures excellent display quality.

[0094] 2 again, the pixel unit 12 includes a color resist layer 125 and a first protection layer 126 . The first protection layer 126 is disposed adjacent to the substrate 11 , and the color resist layer 125 is disposed on a side of the first protection layer 126 facing away from the substrate 11 .

[0095] Optionally, in one embodiment of the present application, the display panel 10 may be a liquid crystal display (LCD) panel. The pixel unit 12 is composed of a color resist layer 125 and a first protective layer 126. The color resist layer 125 and the first protective layer 126 may be stacked, and the first protective layer 126 may be attached to the substrate 11. The color resist layer 125 is attached to the surface of the first protective layer 126 facing away from the substrate 11.

[0096] Optionally, the material of the first protective layer 126 may be, but is not limited to, transparent resin or other light-transmitting materials, etc. Optionally, the first protective layer 126 (OC layer) may be used to protect the color resist layer 125 and planarize the surface of the color resist layer 125 .

[0097] Optionally, in one embodiment of the present application, the process flow of the display panel 10 may include: step one, preparing the first electrode 132 on the substrate 11. Step two, using a baffle or a mold to cover the first electrode 132, coating the first protective layer 126, and then removing the baffle or mold. Step three, forming the cavity 134 between the first protective layer 126 and the first electrode 132, and then placing the anti-peep particles 131. Step four, placing a transparent baffle or mold on the surface of the first electrode 132 and the microspheres to make the second electrode 133. Step five, preparing the color resist layer 125 on the surface of the first protective layer 126. It can be understood that in other embodiments of the present application, the display panel 10 can also be obtained through other process flows, and the process flow of the display panel 10 should not be a limitation to the display panel 10 provided in this embodiment.

[0098] Optionally, in another embodiment of the present application, the pixel unit 12 may not be provided with the first protective layer 126 , but only with the color resist layer 125 , thereby making the display panel 10 thinner and lighter.

[0099] Please refer to FIG2 again. The display panel 10 further includes a second protective layer 16 , which is disposed on surfaces of the pixel unit 12 and the privacy protection unit 13 facing away from the substrate 11 .

[0100] Optionally, the material of the second protective layer 16 can be, but is not limited to, a transparent resin or other light-transmitting materials. Optionally, the second protective layer 16 (OC layer) covers the surface of the pixel unit 12 and the privacy protection unit 13 facing away from the substrate 11. The second protective layer 16 can be used to protect the pixel unit 12 and the privacy protection unit 13, and can also flatten the surface of the pixel unit 12 and the privacy protection unit 13, thereby ensuring that the display panel 10 has uniform light output quality and good display effect.

[0101] Please refer to Figure 12, which is a schematic diagram of a partial structure of a display device along line AA in accordance with a fifth embodiment of the present application. The pixel unit 12 includes an anode 127, a light-emitting layer 128, and a cathode 129. The light-emitting layer 128 is sandwiched between the anode 127 and the cathode 129. The anode 127 transfers holes to the light-emitting layer 128, and the cathode 129 transfers electrons to the light-emitting layer 128. The light-emitting layer 128 emits light under the combined action of the anode 127 and the cathode 129.

[0102] Optionally, in one embodiment of the present application, the display panel 10 may be an organic light-emitting diode (OLED) display panel 10. The pixel unit 12 includes an anode 127, a light-emitting layer 128, and a cathode 129. The anode 127, the light-emitting layer 128, and the cathode 129 may be, but are not limited to, stacked in sequence. In other words, the light-emitting layer 128 may be sandwiched between the anode 127 and the cathode 129.

[0103] Optionally, the cathode 129 may be made of, but not limited to, aluminum (Al), silver (Ag), magnesium (Mg), or other materials. The cathode 129 may transfer electrons to the light-emitting layer 128 .

[0104] Optionally, the material of the anode 127 may be, but is not limited to, indium tin oxide (ITO) or other materials, etc. The anode 127 can transfer holes to the light-emitting layer 128 .

[0105] Optionally, the material of the light-emitting layer 128 may be, but is not limited to, a small molecule organic fluorescent substance, a phosphorescent substance, a polymer, or other materials. When the electrons and holes enter the light-emitting layer 128, the electrons and holes attract each other and excite the light-emitting layer 128 to emit light.

[0106] Optionally, the pixel unit 12 may further include an electron transport layer, a hole transport layer and other functional layers. It is understandable that the other functional layers of the pixel unit 12 should not limit the display panel 10 provided in this embodiment.

[0107] In this embodiment, the anti-peeping unit 13 is arranged between two adjacent pixel units 12, which can separate the pixel units 12, and enables the anti-peeping unit 13 to adjust a variety of different display viewing angles in the OLED type display panel 10, thereby realizing flexible switching between the sharing mode and the anti-peeping mode.

[0108] Referring to Figures 1, 2, and 13, Figure 13 is a schematic diagram of the structural framework of a display device according to an embodiment of the present application. The present application also provides a display device 1, comprising a processor 20 and the display panel 10. The processor 20 controls the control signals applied to the first electrodes 132 and the second electrodes 133, so that the display panel 10 has a first state and a second state, and can switch between the first state and the second state.

[0109] Optionally, the display device 1 may be, but is not limited to, a liquid crystal display device (Liquid Crystal Display, LCD), a sub-millimeter light emitting diode (Mini-Light Emitting Diode, Mini-LED) display device, a micro-light emitting diode (Micro-Light Emitting Diode, Micro-LED) display device, or an organic light emitting diode (Organic Light-Emitting Diode, OLED) display device, etc. It can be understood that the display device 1 may also be of other functional types, and the functional type of the display device 1 should not be a limitation to the display device 1 provided in this embodiment.

[0110] Optionally, the processor 20 may be disposed within the display device 1 and electrically connected to the first electrode 132 and the second electrode 133 of the display panel 10. The processor 20 may control control signals applied to the first electrode 132 and the second electrode 133, and cause the privacy protection particles 131 to move toward or away from the peripheral light-emitting surface 122, so that the display panel 10 has a first state and a second state, and can switch between the first state and the second state.

[0111] Specifically, the display device 1 can adjust the display panel 10 to have different light output angles by controlling the different movement positions of the anti-peeping particles 131, thereby achieving flexible switching between a sharing mode and an anti-peeping mode, and providing a variety of different display angles for the user to choose from. When the display panel 10 is in a first state, it can have a good anti-peeping effect to protect user privacy. When the display panel 10 is in a second state, it can have a normal display state to meet the user's usage experience. At the same time, the display panel 10 can also achieve multi-angle controllable anti-peeping, thereby effectively expanding the application range of the display panel 10 and the display device 1.

[0112] Mentioning "embodiments" and "implementation methods" in this application means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, unless there is a contradiction between them.

[0113] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the above preferred implementation modes, ordinary technicians in this field should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A display panel, wherein: The display panel comprises: substrate; A pixel unit, the pixel unit is carried on the substrate, and the pixel unit has a top light emitting surface and a peripheral light emitting surface connected by bending; and An anti-peeping unit, the anti-peeping unit is carried on the substrate and is disposed adjacent to the peripheral light-emitting surface, the anti-peeping unit comprises anti-peeping particles and a first electrode and a second electrode disposed opposite to each other, the first electrode, the second electrode and the pixel unit are surrounded to form a cavity, the cavity is used to accommodate the anti-peeping particles, the first electrode and the second electrode are loaded with a control signal to control the anti-peeping particles to move in a direction close to the peripheral light-emitting surface or away from the peripheral light-emitting surface; The display panel has a first state and a second state. When the display panel is in the first state, along the arrangement direction of the pixel unit and the anti-peeping unit, a distance range D1 is provided between the center point of the anti-peeping particle and the peripheral light emitting surface of the pixel unit, and the display panel has a first light emitting viewing angle θ1. When the display panel is in the second state, along the arrangement direction of the pixel unit and the anti-peeping unit, a distance range D2 is provided between the center point of the anti-peeping particle and the peripheral light emitting surface of the pixel unit, and the display panel has a second light emitting viewing angle θ2, wherein θ1<θ2, and D1<D2.

2. The display panel according to claim 1, wherein: The anti-peeping particles carry a first charge and a second charge, and the polarity of the first charge is different from the polarity of the second charge; When the display panel switches from the first state to the second state, the first electrode is loaded with a first polarity signal, the second electrode is loaded with a second polarity signal, a first electric field is formed between the second electrode and the first electrode to serve as the control signal, and the anti-peeping particles move in a direction away from the peripheral light-emitting surface under the action of the first electric field.

3. The display panel according to claim 2, wherein: When the display panel switches from the second state to the first state, the first electrode is loaded with a second polarity signal, the second electrode records the first polarity signal, and a second electric field is formed between the second electrode and the first electrode to serve as the control signal, wherein the second electric field is opposite to the direction of the first electric field, and the anti-peeping particles move toward a direction close to the peripheral light-emitting surface under the action of the second electric field.

4. The display panel according to claim 2, wherein: The anti-peeping particle is an opaque sphere, and has a first portion and a second portion that are symmetrically arranged, the first portion carries a first charge, the second portion carries a second charge, and the polarity of the first charge is different from the polarity of the second charge.

5. The display panel according to claim 2, wherein: When the display panel is in a first state, the portion of the anti-peeping particle with a first charge faces the first electrode, and the portion of the anti-peeping particle with a second charge faces the second electrode. When the display panel switches from the first state to the second state, the first electrode is loaded with a first polarity signal, and the second electrode is loaded with a second polarity signal, and the anti-peeping particle rotates and moves to a position away from the peripheral light-emitting surface.

6. The display panel according to claim 5, wherein: When the display panel switches from the second state to the first state, the anti-peeping particles rotate and move to a position adjacent to the peripheral light emitting surface.

7. The display panel according to claim 1, wherein: The anti-peeping particles abut against the first electrode and the second electrode.

8. The display panel according to claim 1, wherein: The pixel unit of the display panel includes a first pixel unit and a second pixel unit which are arranged at intervals, and the anti-peeping unit is arranged between the first pixel unit and the second pixel unit.

9. The display panel according to claim 8, wherein: The anti-peeping particles of the anti-peeping unit include first anti-peeping particles and second anti-peeping particles, the first anti-peeping particles are adjacent to the first pixel unit, and the second anti-peeping particles are adjacent to the second pixel unit. When the display panel is in a first state, there is a first distance L1 between the first anti-peeping particle and the second anti-peeping particle; when the display panel is in a second state, there is a second distance L2 between the first anti-peeping particle and the second anti-peeping particle, wherein L2<L1.

10. The display panel according to claim 8, wherein: One end of the second electrode abuts against the first pixel unit, and the other end of the second electrode abuts against the second pixel unit.

11. The display panel according to claim 1, wherein: The display panel has a display surface. The first electrode is arranged adjacent to the display surface. The second electrode is arranged on a side of the first electrode away from the display surface. The first electrode is made of a light-transmitting material, and the second electrode is made of a light-shielding material.

12. The display panel according to claim 1, wherein: The pixel unit includes a color resist layer and a first protection layer. The first protection layer is arranged adjacent to the substrate, and the color resist layer is arranged on a side of the first protection layer away from the substrate.

13. The display panel according to claim 12, wherein: The display panel further includes a second protection layer, and the second protection layer is disposed on surfaces of the pixel unit and the anti-peeping unit away from the substrate.

14. The display panel according to claim 1, wherein: The pixel unit includes an anode, a light-emitting layer and a cathode. The light-emitting layer is sandwiched between the anode and the cathode. The anode transmits holes to the light-emitting layer, and the cathode transmits electrons to the light-emitting layer. The light-emitting layer emits light under the joint action of the anode and the cathode.

15. A display device, wherein: The display device comprises a processor and a display panel according to any one of claims 1 to 14; The processor controls control signals applied to the first electrode and the second electrode so that the display panel has the first state and the second state and can be switched between the first state and the second state.

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