Display panel and display device

Abstract

The invention belongs to the technical field of display, and particularly relates to a display panel and a display device.The display panel comprises a substrate, a driving circuit layer, a pixel definition layer, a plurality of light emitting diode dimming layers, a driving structure and a light reflecting material; the flow channel of the first dimming part and the flow channel of the second dimming part of the dimming layer are not internally provided with the reflective material, the first dimming part and the second dimming part are in a transparent state, and light of the light emitting diode can be emitted out through the first dimming part, the second dimming part and the light transmitting part. A sharing mode is realized; the reflective material can flow into the flow channel of the first dimming part and the flow channel of the second dimming part from the pixel definition part of the pixel definition layer under the action of the driving structure; the light reflecting materials located in the first dimming part and the second dimming part can reflect light emitted by the light emitting diode, so that a peep-proof mode is achieved.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and specifically relates to a display panel and a display device. Background Art

[0002] OLED (Organic Light-Emitting Diode) display panels have the advantages of being light, thin, bendable, high brightness, low power consumption, fast response, high clarity, and a wide color gamut. They are being increasingly used in electronic devices such as televisions, mobile phones, and notebooks.

[0003] The active light-emitting characteristics of light-emitting diodes give OLED display panels a wider viewing angle, which can bring users a better visual experience. However, sometimes users also hope that the viewing angle of the display panel can be adjusted to a smaller value, thereby effectively protecting business secrets and personal privacy, and avoiding business losses or embarrassment caused by leakage of screen information. However, the existing anti-peeping display panels have the problem of inconvenient switching between normal display and anti-peeping display. Summary of the invention

[0004] The purpose of the present application is to provide a display panel and a display device, which can realize the switching between the anti-peeping function and the sharing function of the display panel.

[0005] In a first aspect, the present application provides a display panel, the display panel comprising a base substrate, a driving circuit layer, a pixel definition layer and a plurality of light emitting diodes arranged on the base substrate, the pixel definition layer being arranged on a side of the driving circuit layer away from the base substrate, the pixel definition layer having a plurality of pixel openings arranged at intervals and a pixel definition portion located between adjacent pixel openings, each of the light emitting diodes being located in one of the pixel openings, and the display panel further comprising:

[0006] A dimming layer, comprising a plurality of dimming units, wherein the dimming units correspond to the pixel definition parts one by one, and the dimming units are arranged on the pixel definition parts; the dimming units include a first dimming unit and a second dimming unit, wherein the first dimming unit and the second dimming unit are extended in a direction from the base substrate to the pixel definition layer, and the extension directions of the first dimming unit and the second dimming unit are opposite, a light-transmitting part is formed between the first dimming unit of one of the two adjacent dimming units and the second dimming unit of the other dimming unit, and a flow channel is provided in the first dimming unit and the second dimming unit;

[0007] A driving structure, electrically connected to the driving circuit layer;

[0008] A reflective material is disposed in the pixel definition portion, and the reflective material can flow into the flow channel of the first dimming portion and the flow channel of the second dimming portion under the action of the driving structure, or the reflective material can flow out of the flow channel of the first dimming portion and the flow channel of the second dimming portion under the action of the driving structure;

[0009] Among them, there is no reflective material in the flow channel of the first dimming part and the flow channel of the second dimming part, the first dimming part and the second dimming part are transparent, and the light of the light emitting diode can be emitted through the first dimming part, the second dimming part and the light-transmitting part to realize the sharing mode; the reflective material can flow from the pixel definition part to the flow channel of the first dimming part and the flow channel of the second dimming part under the action of the driving structure, and the reflective material located in the first dimming part and the second dimming part can reflect the light emitted by the light emitting diode to realize the anti-peeping mode.

[0010] In an exemplary embodiment of the present application, the reflective material includes metal droplets;

[0011] The pixel definition portion is provided with a receiving space which is connected with the flow channel of the first light modulating portion and the flow channel of the second light modulating portion, and the metal droplets are filled in the receiving space.

[0012] In an exemplary embodiment of the present application, the metal droplets can flow into or out of the flow channel of the first dimming unit and the flow channel of the second dimming unit under the action of voltage, and control the volume of the reflective material flowing into or out of the flow channel of the first dimming unit and the flow channel of the second dimming unit according to the magnitude of the voltage.

[0013] In an exemplary embodiment of the present application, the side of the accommodating space close to the base substrate is an opening, and the reflective material is a magnetic metal droplet;

[0014] The display panel further comprises an insulating layer, the insulating layer is arranged on a side of the driving circuit layer away from the base substrate, and the light emitting diode and the pixel definition part are arranged on a side of the insulating layer away from the base substrate, a groove is arranged on the insulating layer, and an orthographic projection of the groove on the base substrate is located within an orthographic projection of the pixel definition part on the base substrate;

[0015] The driving structure includes a controller, the controller is arranged in the groove, the controller is electrically connected to the driving circuit layer, and the controller is connected to the magnetic metal droplet through the opening;

[0016] Wherein, the controller can, under the action of the driving circuit layer, repel the magnetic metal droplets from flowing into the flow channel of the first regulating part and the flow channel of the second regulating part, so that the magnetic metal droplets fill at least part of the flow channel of the first regulating part and the flow channel of the second regulating part, so that at least part of the first dimming part and the second dimming part are in a reflective state; or, the controller can, under the action of the driving circuit layer, make the magnetic metal droplets located in the flow channel of the first dimming part and the flow channel of the second dimming part flow back into the containing space.

[0017] In an exemplary embodiment of the present application, the first dimming unit and the second dimming unit include a dimming body, the dimming body is provided with the flow channel inside, and the driving structure includes:

[0018] a first driving component, disposed in the accommodating space, the first driving component comprising a first hydrophobic layer and a first transparent electrode layer, the first hydrophobic layer being disposed on a side of the first transparent electrode layer close to the metal droplet, the first transparent electrode layer comprising a plurality of first electrode blocks arranged at intervals, the first electrode blocks being connected to the driving circuit layer;

[0019] a second driving component, disposed in the accommodating space and arranged opposite to the first driving component, the second driving component comprising a second hydrophobic layer and a second transparent electrode layer, the second hydrophobic layer being disposed on a side of the second transparent electrode layer close to the metal droplet, the second transparent electrode layer being electrically connected to the driving circuit layer, and the metal droplet being able to move under the action of the first electrode block and the second transparent electrode layer;

[0020] a third driving component, disposed in the dimming body, the third driving component comprising a third hydrophobic layer and a third transparent electrode layer, the third hydrophobic layer being disposed on a side of the third transparent electrode layer away from the inner wall of the dimming body, the third transparent electrode layer comprising a plurality of second electrode blocks arranged at intervals;

[0021] A fourth driving component is disposed in the dimming body and is arranged opposite to the third driving component. The fourth driving component includes a fourth hydrophobic layer and a fourth transparent electrode layer. The fourth hydrophobic layer is disposed on a side of the fourth transparent electrode layer away from the inner wall of the dimming body. The flow channel is formed between the fourth hydrophobic layer and the third hydrophobic layer. The fourth transparent electrode layer and the second electrode block can drive the metal droplets located in the flow channel to move.

[0022] In an exemplary embodiment of the present application, the driving structure includes an electrodeformable material, the electrodeformable material is disposed in the accommodation space, and the electrodeformable material is overlapped on the driving circuit layer and electrically connected to the driving circuit layer;

[0023] Among them, the electrodeformable material can be deformed under the action of the driving circuit layer to squeeze the metal droplets to flow into the flow channel of the first dimming part and the flow channel of the second dimming part; or control the metal droplets to flow out from the flow channel of the first dimming part and the flow channel of the second dimming part.

[0024] In an exemplary embodiment of the present application, the dimming unit further includes a light absorbing member, and the light absorbing member is disposed on a side of the first dimming unit and the second dimming unit away from the base substrate; and / or

[0025] The orthographic projections of the first dimming unit and the second dimming unit on the base substrate partially overlap with the orthographic projection of the light emitting diode on the base substrate.

[0026] In an exemplary embodiment of the present application, the first dimming unit and the second dimming unit are bent toward the light emitting diode, and the bending directions of the first dimming unit and the second dimming unit are opposite;

[0027] The arc angle of the first dimming part and the second dimming part is 90°.

[0028] A second aspect of the present application provides a display device, including:

[0029] Display unit;

[0030] The display panel described in any one of the above items, wherein the display unit comprises a plurality of mirror components spaced apart from each other, the mirror components are arranged on a side of the base substrate away from the driving circuit layer, the mirror components and the base substrate have an angle, and the mirror components correspond to the light emitting diodes one by one;

[0031] Among them, when the first dimming part and the second dimming part are in a reflective state: the mirror component can reflect the light reflected by the first dimming part and the second dimming part on the opposite sides of the transparent part, and the light reflected by the mirror component is emitted through the gap between adjacent mirror components.

[0032] In another exemplary embodiment of the present application, the display unit further includes a transparent filling layer, and the transparent filling layer is disposed between adjacent mirror components;

[0033] The mirror assembly comprises a silver mirror layer and a light shielding layer, wherein the silver mirror layer is arranged on a side of the light shielding layer close to the base substrate, and the silver mirror layer can emit the light reflected by the first adjusting part and the second adjusting part from the gap between adjacent mirror assemblies;

[0034] The angle θ formed by the silver mirror layer and the base substrate satisfies: θ=arctanD / L; wherein D is the height of the silver mirror layer, and L is the distance between adjacent silver mirror layers.

[0035] The display panel and display device of the present application have at least the following beneficial effects:

[0036] The display panel in the present application includes a driving circuit layer, a pixel definition layer, a light emitting diode, a dimming layer, a driving structure and a reflective material. Under the action of the driving structure, the reflective material flows into the flow channel of the first dimming part and the flow channel of the second dimming part in the dimming layer. At least part of the first dimming part and the second dimming part is in a reflective state. The first dimming part and the second dimming part are provided with a portion of the reflective material, which can reflect the light emitted by the light emitting diode, so that the light emitted by the light emitting diode can only be emitted from the transparent part, reducing the light emission angle, and the display panel is in an anti-peeping mode. Under the action of the driving structure, the reflective material flows out from the flow channel of the first dimming part and the flow channel of the second dimming part, so that the light emission angle gradually increases. When the reflective material is completely located in the pixel definition part, the first dimming part and the second dimming part are in a transparent state, and the light can be emitted through the first dimming part, the second dimming part and the transparent part. The light emitted by the light emitting diode is not blocked. At this time, the angle of light emission is the largest, and the display panel is in a sharing mode. That is to say, switching between the sharing mode and the anti-peeping mode is achieved through the driving structure, the reflective material, the first dimming unit and the second dimming unit. The switching between the two modes is more convenient and simple, and privacy can be protected.

[0037] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0038] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A schematic diagram of the structure in which a non-display area is arranged around a display area provided in Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4 or Embodiment 5 of the present application is shown.

[0041] Figure 2 A schematic diagram of the structure of the controller and the reflective material provided in the first or fifth embodiment of the present application is shown.

[0042] Figure 3 A schematic diagram of the structure in which a reflective material is provided in a pixel definition portion provided in Embodiment 1 or Embodiment 5 of the present application is shown.

[0043] Figure 4 A schematic diagram of the structure in which the controller provided in Embodiment 1 or Embodiment 5 of the present application controls part of the reflective material to flow into the flow channel is shown.

[0044] Figure 5 A schematic diagram of the structure in which the controller provided in the first or fifth embodiment of the present application controls all reflective materials to flow into the flow channel is shown.

[0045] Figure 6 A schematic structural diagram of the first dimming unit and the second dimming unit provided in Embodiments 1 to 5 of the present application are shown.

[0046] Figure 7 A structural schematic diagram showing that the first drive assembly and the second drive assembly provided in the second or fifth embodiment of the present application are arranged in the accommodating space.

[0047] Figure 8 A schematic structural diagram is shown in which a first driving component and a second driving component are provided in a pixel definition portion provided in Embodiment 2 or Embodiment 5 of the present application.

[0048] Fig. 9 A schematic diagram of the structure of the first driving assembly and the second driving assembly provided in the second or fifth embodiment of the present application controlling part of the reflective material to flow into the flow channel is shown.

[0049] Fig.10 A schematic diagram of the structure in which the third drive assembly and the fourth drive assembly provided in the second or fifth embodiment of the present application are arranged in the flow channel is shown.

[0050] Fig.11 A schematic diagram of the structure of the first drive assembly, the second drive assembly, the third drive assembly and the fourth drive assembly provided in the second or fifth embodiment of the present application controlling all reflective materials to flow into the flow channel is shown.

[0051] Fig.12 A schematic diagram of the structure in which the electrodeformable material provided in the third or fifth embodiment of the present application is arranged in the accommodation space is shown.

[0052] Fig.13 A schematic structural diagram is shown in which an electrodeformable material and a reflective material are provided in a pixel definition portion provided in the third or fifth embodiment of the present application.

[0053] Fig.14 A schematic diagram of the structure in which the electrodeformable material provided in the third or fifth embodiment of the present application presses part of the reflective material into the flow channel is shown.

[0054] Fig.15 A schematic diagram of the structure in which the electrodeformable material provided in the third or fifth embodiment of the present application presses all the reflective materials into the flow channel is shown.

[0055] Fig.16 A schematic diagram of the structure in which the first drive assembly and the second drive assembly provided in the fourth or fifth embodiment of the present application are arranged in the accommodating space is shown.

[0056] Fig.17 A schematic diagram of the cross-sectional structure of the first drive assembly and the second drive assembly provided in Embodiment 4 or Embodiment 5 of the present application is shown.

[0057] Fig.18 A schematic diagram of the structure in which the electrodeformable material provided in the fourth or fifth embodiment of the present application is arranged in the accommodating space is shown.

[0058] Fig.19 A schematic diagram of the cross-sectional structure of the electrodeformable material provided in the fourth or fifth embodiment of the present application is shown.

[0059] Fig. 20 A schematic structural diagram of a display panel combined with a display unit provided in Embodiment 5 of the present application is shown.

[0060] Fig.21 A schematic structural diagram of another display panel combined with a display unit provided in Embodiment 5 of the present application is shown.

[0061] Fig. 22 A schematic structural diagram of a combination of another display panel and a display unit provided in Embodiment 5 of the present application is shown.

[0062] Fig.23 A schematic structural diagram of the combination of a mirror and a mirror assembly provided in Example 5 of the present application is shown.

[0063] Fig.24 A structural schematic diagram of the light emission angle provided in Example 5 of the present application is shown.

[0064] Description of reference numerals:

[0065] 100, display panel; 110, base substrate; 111, display area; 112, non-display area; 120, pixel definition layer; 121, pixel opening; 122, pixel definition part; 1220, accommodation space; 130, light-emitting diode; 131, anode; 132, light-emitting part; 133, cathode; 140, driving circuit layer; 150, dimming layer; 151, dimming unit; 1510, first dimming part; 1511, second dimming part; 1512, flow channel; 1513, dimming body; 161, controller; 162, first driving component; 1620, first hydrophobic layer; 1621, first transparent electrode layer; 16210, first electrode block; 163, second driving component; 1630, second hydrophobic layer; 1631, second transparent electrode layer; 164, third driving component; 1640, third hydrophobic layer; 1641, third transparent electrode layer; 16410, second electrode block; 165, fourth driving component; 1650, fourth hydrophobic layer; 1651, fourth transparent electrode layer; 166, electrodeformable material; 170, reflective material; 180, insulating layer; 190, light absorbing element; 1000, encapsulation layer; 200, display unit; 210, mirror component; 211, silver mirror layer; 212, shading layer; 220, transparent filling layer. DETAILED DESCRIPTION

[0066] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0067] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, the terms "assembly", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0070] Embodiment 1

[0071] The first embodiment of the present application provides a display panel 100, which may be an OLED (organic light emitting diode 130) display panel 100. The display panel 100 may include a base substrate 110, a pixel definition layer 120 and a light emitting diode 130, wherein the pixel definition layer 120 and the light emitting diode 130 are both disposed on the base substrate 110, the base substrate 110 has a display area 111 and a non-display area 112, and the non-display area 112 may be disposed around the display area 111, wherein the pixel definition layer 120 and the light emitting diode 130 may be disposed on the display area 111 of the base substrate 110, as shown in FIG. Figure 1 shown.

[0072] It should be understood that if Figure 2 As shown, the display panel 100 may further include a driving circuit layer 140. The driving circuit layer 140 may be formed on the base substrate 110 before the pixel definition layer 120 and the light-emitting diode 130. The driving circuit layer 140 may include thin-film transistors, wiring and other circuit structures for driving the light-emitting diode 130 mentioned later to emit light, which will not be elaborated herein.

[0073] For example, the base substrate 110 may be a rigid substrate made of glass, but is not limited thereto. It may also be a flexible substrate made of materials such as polyimide (abbreviated as PI). In other words, the display panel 100 of the present application is not limited to a rigid, non-bendable panel, but may also be a flexible, bendable panel.

[0074] like Figure 2 As shown, the pixel definition layer 120 may have a plurality of pixel openings 121 arranged at intervals and a pixel definition portion 122 located between adjacent pixel openings 121. In other words, the pixel definition layer 120 as a whole may be regarded as a grid-like hollow structure layer, the hollow area is the pixel opening 121 for forming pixels in this embodiment, and the non-hollow area is the pixel definition portion 122 of this embodiment.

[0075] It should be understood that the surface of the pixel definition portion 122 away from the base substrate 110 is a plane. For example, the pixel definition layer 120 can be made of materials such as PI.

[0076] like Figure 2 As shown, the light emitting diode 130 includes an anode 131 , a light emitting portion 132 , and a cathode 133 which are stacked in sequence.

[0077] It should be understood that the anodes 131 of each light-emitting diode 130 in the display panel 100 are spaced apart from each other so that each light-emitting diode 130 can be driven independently of each other; the cathodes 133 of each light-emitting diode 130 can be interconnected to form an entire surface electrode to reduce processing costs. In addition, the cathodes 133 of each light-emitting diode 130 can also be spaced apart from each other.

[0078] In the embodiment of the present application, the cathodes 133 of the light emitting diodes 130 are spaced apart from each other to form the anti-peeping unit.

[0079] The anode 131 may include a conductive layer, which is formed in the pixel opening 121. That is, in the process of manufacturing the display panel 100, the pixel definition layer 120 is first formed on the base substrate 110, and then the conductive layer is manufactured. This conductive layer is located between adjacent pixel definition parts 122. The edge area of ​​this conductive layer can be connected to structures such as thin film transistors in the driving circuit layer 140, and the pixel opening 121 exposes the conductive layer. The light-emitting part 132 is located in the pixel opening 121 and contacts the conductive layer.

[0080] For example, the conductive layer may be a multilayer structure, that is, the conductive layer may at least include a reflective layer and a high work function material layer stacked in sequence. The high work function material layer may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) or indium oxide (In2O3); the reflective layer may include silver (Ag), that is, the conductive layer may be a multilayer structure of ITO / Ag, but is not limited thereto, the conductive layer may also include a high work function material layer, a reflective layer and a high work function material layer stacked in sequence, for example, the conductive layer may also be a multilayer structure of ITO / Ag / ITO.

[0081] The light emitting portion 132 may be located in the pixel opening 121, that is, when manufacturing the display panel 100, the pixel definition layer 120 may be manufactured first, and then the light emitting portion 132 may be manufactured after the pixel definition layer 120 is manufactured, so that the light emitting portion 132 is formed in the pixel opening 121. For example, the light emitting portion 132 may be formed in the pixel opening 121 by evaporation or the like.

[0082] It should be understood that the light-emitting portion 132 may include a hole injection layer, a hole transport layer, an organic light-emitting material layer, an electron transport layer and an electron injection layer stacked in sequence, the hole injection layer is in contact with the anode 131, and the electron injection layer is in contact with the cathode 133, but is not limited to this. The light-emitting portion 132 may also include only a hole transport layer, a light-emitting material layer and an electron transport layer, or other structures, depending on actual needs.

[0083] The cathode 133 may be formed after the light emitting portion 132 is formed, and is in contact with the light emitting portion 132. The cathode 133 may include a low work function material layer including Li, Ca, LiF / Ca, LiF / Al, Al, Mg, Ag, Pt, Pd, Ni, Au, Nd, Ir, Cr, BaF2, Ba, a compound thereof, or a mixture thereof, for example, the cathode 133 may include a low work function material layer made of a mixture of Ag and Mg.

[0084] It should be understood that the light emitting portion 132 of the light emitting diode 130 in the embodiment of the present application is located in a corresponding pixel opening 121 , which can be understood as: the number of the light emitting diodes 130 is the same as the number of the pixel openings 121 , and they correspond one to one.

[0085] In this embodiment, the multiple light-emitting diodes 130 in the display panel 100 may include multiple types, and the light-emitting parts 132 of different types of light-emitting diodes 130 have different light-emitting colors, for example: red type light-emitting diodes 130, green type light-emitting diodes 130 and blue type light-emitting diodes 130, etc. The red type light-emitting diode 130 refers to the light-emitting part 132 having a red light-emitting color, the green type light-emitting diode 130 refers to the light-emitting part 132 having a green light-emitting color, and the blue type light-emitting diode 130 refers to the light-emitting part 132 having a blue light-emitting color.

[0086] The light emitting diode 130 can be understood as a sub-pixel in the display panel 100 , and adjacent red-type light emitting diodes 130 , green-type light emitting diodes 130 , and blue-type light emitting diodes 130 can form a pixel unit.

[0087] In the embodiments of the present application, Figure 2 As shown, the display panel 100 further includes a dimming layer 150, which is disposed on a side of the pixel definition layer 120 away from the base substrate 110, that is, the dimming layer 150 is disposed above the pixel definition layer 120. When preparing the display panel 100, the dimming layer 150 is formed after the pixel definition layer 120 is formed in advance.

[0088] In the embodiments of the present application, Figure 2 As shown, the dimming layer 150 includes a plurality of dimming units 151 , and each of the dimming units 151 is disposed on the pixel definition portion 122 .

[0089] In the embodiments of the present application, Figure 2 As shown, each dimming unit 151 includes a first dimming section 1510 and a second dimming section 1511, and the first dimming section 1510 and the second dimming section 1511 are arranged on the same pixel definition section 122. The first dimming section 1510 and the second dimming section 1511 are both extended in the direction from the base substrate 110 to the pixel definition layer 120, that is, the first dimming section 1510 and the second dimming section 1511 are both extended in the vertical direction.

[0090] In the embodiments of the present application, Figure 2 As shown, the extension directions of the first dimming unit 1510 and the second dimming unit 1511 are opposite.

[0091] For example, the first dimming unit 1510 and the second dimming unit 1511 can be extended in a straight line in an oblique upward direction; can also be extended in a curved line in an oblique upward direction, or can be extended in other ways.

[0092] The orthographic projection of the first light modulator 1510 on the base substrate 110 and the orthographic projection of the light emitting diode 130 on the base substrate 110 may overlap or may not overlap.

[0093] In the embodiments of the present application, Figure 2 As shown, the orthographic projection of the first dimming part 1510 on the base substrate 110 partially overlaps with the orthographic projection of the light emitting diode 130 on the base substrate 110, and the orthographic projection of the second dimming part 1511 on the base substrate 110 also partially overlaps with the orthographic projection of the light emitting diode 130 on the base substrate 110. When the reflective material 170 enters the first dimming part 1510 and the second dimming part 1511 later, a larger anti-peeping angle can be presented.

[0094] It is worth mentioning that the first dimming unit 1510 and the second dimming unit 1511 may have the same structure or different structures.

[0095] In the embodiments of the present application, Figure 2 As shown, the first dimming unit 1510 and the second dimming unit 1511 both adopt the same structure, which can simplify the manufacturing process and save costs.

[0096] In the embodiments of the present application, Figure 2As shown, the first dimming section 1510 and the second dimming section 1511 both adopt an arc segment structure, and the first dimming section 1510 and the second dimming section 1511 are both arc structures bent toward the light emitting diode 130 side, and the bending extension direction of the first dimming section 1510 is opposite to the bending extension direction of the second dimming section 1511. For example, the bending extension direction of the first dimming section 1510 is to the left, and the bending extension direction of the second dimming section 1511 is to the right. In other words, the first dimming section 1510 and the second dimming section 1511 are bent toward different light emitting diodes 130.

[0097] In the embodiments of the present application, Figure 2 As shown, the arc angle of the first dimming part 1510 and the second dimming part 1511 is 90°, that is, the first dimming part 1510 and the second dimming part 1511 are semi-circular arc structures.

[0098] The first dimming part 1510 and the second dimming part 1511 adopt an arc-shaped structure to ensure that the light emitted by the light-emitting diode 130 can reflect collimated light when it contacts the wall of the first dimming part 1510 in a reflective state and the wall of the second dimming part 1511 in a reflective state.

[0099] It should be understood that according to the principle of concave mirrors, light is scattered from the inner center of the concave mirror, and when the light contacts the wall of the concave mirror, it is reflected in a collimated straight line, such as Figure 5 That is, the light reflected by the first dimming unit 1510 and the second dimming unit 1511 is collimated light, and the emission direction of the light is perpendicular to the base substrate 110 .

[0100] In the embodiment of the present application, a light-transmitting portion is formed between the first light-modulating unit 1510 in one of two adjacent light-modulating units 151 and the second light-modulating unit 1511 in the other light-modulating unit 151. The LED 130 can emit light through the light-transmitting portion in both the anti-peeping mode and the sharing mode.

[0101] In the embodiment of the present application, the first dimming unit 1510 and the second dimming unit 1511 can be made of transparent material so as not to block the light emitted by the light-emitting diode 130 in the sharing mode, thereby ensuring a normal angle in the sharing mode and further ensuring normal image display.

[0102] In the embodiments of the present application, Figure 2As shown, the first dimming part 1510 and the second dimming part 1511 are both provided with a flow channel 1512. The flow channel 1512 can be used to inject the following reflective material 170, so that the first dimming part 1510 and the second dimming part 1511 are in a reflective state. When light is directed to the first dimming part 1510 and the second dimming part 1511, it will be vertically reflected back to the light emitting diode 130 side along a direction perpendicular to the base substrate 110.

[0103] In the embodiment of the present application, the display panel 100 further includes a driving structure. The driving structure is electrically connected to the driving circuit layer 140, and the flow of the reflective material 170 described below is driven by the driving structure.

[0104] It is worth mentioning that, depending on the difference of the driving structure, the design position is also different, and can be specifically designed according to different embodiments.

[0105] In the embodiments of the present application, Figure 2 and Figure 3 As shown, the display panel 100 also includes a reflective material 170, which can be arranged in the pixel definition part 122. The pixel definition part 122 equipped with the reflective material 170 is interconnected with the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511, so that the reflective material 170 can flow into the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 under the action of the driving structure, and the reflective material 170 can flow out from the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 under the action of the driving structure.

[0106] It should be noted that the reflective material 170 is not limited to being disposed in the pixel definition portion 122, but may also be disposed at the junction of the driving circuit layer 140 and the pixel definition portion 122, and connected to the flow channel 1512 in the first dimming portion 1510 and the second dimming portion 1511 through a pipeline; of course, it may also be disposed in other locations as long as it does not affect normal display.

[0107] In the embodiment of the present application, the display panel 100 includes a sharing mode and an anti-peeping mode. In the sharing mode, the first dimming section 1510 and the second dimming section 1511 are transparent, the reflective material 170 is completely located in the pixel definition section 122, the reflective material 170 does not flow into the flow channel 1512 of the first dimming section 1510 and the second dimming section 1511, the first dimming section 1510 and the second dimming section 1511 are transparent, the light emitted by the light emitting diode 130 can pass through the first dimming section 1510, the second dimming section 1511 and the light-transmitting section to emit out of the display panel 100, the sight angle is the largest, and this is the sharing mode. When the sharing mode is switched to the anti-peeping mode, the reflective material 170, under the action of the driving structure, gradually flows from the pixel definition part 122 into the flow channel 1512 of the first dimming part 1510 and into the flow channel 1512 of the second dimming part 1511, so that at least part of the first dimming part 1510 and at least part of the second dimming part 1511 are in a reflective state, and the part of the flow channel 1512 of the first dimming part 1510 provided with the reflective material 170 can reflect the light emitted by the light-emitting diode 130, and the part of the flow channel 1512 of the second dimming part 1511 provided with the reflective material 170 can reflect the light emitted by the light-emitting diode 130, so that the light emitted by the light-emitting diode 130 can only be emitted from the first dimming part 1510, the second dimming part 1511 and the light-transmitting part where the reflective material 170 is not provided, and the smaller the light emission angle is, the smaller the viewing angle for the outside world to obtain information is, thereby realizing the anti-peeping mode.

[0108] Correspondingly, when switching from the anti-peep mode to the sharing mode, the driving structure drives the reflective material 170 to flow from the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 back to the pixel definition part 122, so that the reflective material 170 is completely located in the pixel definition part 122, and the first dimming part 1510 and the second dimming part 1511 are transparent.

[0109] The present application uses the first dimming unit 1510, the second dimming unit 1511, the driving structure and the reflective material 170 to enable the display panel 100 to realize the sharing mode and the anti-peeping mode. The driving structure is used to drive the reflective material 170 into the flow channel 1512 of the first dimming unit 1510 and the second dimming unit 1511 to realize the switching between the sharing mode and the anti-peeping mode, and the switching between the two modes is simpler and more convenient.

[0110] In the embodiments of the present application, Figure 4As shown, a receiving space 1220 is provided in the pixel definition part 122, and the receiving space 1220 is a cavity penetrating in the thickness direction of the base substrate 110. The receiving space 1220 is filled with a reflective material 170, and the first dimming part 1510 and the second dimming part 1511 are arranged above the receiving space 1220 at intervals and communicate with the inside of the receiving space 1220.

[0111] It should be noted that, in order to fix the dimming unit 151, the top of the pixel definition layer 120 is a plane, and an opening is opened on the plane. The first dimming part 1510 and the second dimming part 1511 are connected to the accommodating space 1220 through the opening, so that the metal droplets can flow into the flow channel 1512 of the first dimming part 1510 and the second dimming part 1511.

[0112] It is understandable that the plane may be formed on the upper side of the pixel definition part 122 when preparing the first dimming part 1510 and the second dimming part 1511 to cover the accommodation space 1220. Alternatively, the plane may be formed on the pixel definition part 122 when preparing the first dimming part 1510 and the second dimming part 1511 to prevent the metal droplets from overflowing outside the accommodation space 1220.

[0113] Under the action of the driving structure, the metal droplets flow from the accommodating space 1220 into the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511, or flow out from the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511.

[0114] The metal droplets can flow under the action of mechanical, magnetic field or voltage, and of course other methods can also be used, and are not limited to these.

[0115] In the embodiment of the present application, the metal droplets located in the accommodating space 1220 can flow into or out of the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 under the action of voltage / magnetic field.

[0116] It should be noted that if Figure 4 and Figure 5As shown, the flow path of the reflective material 170 in the flow channel 1512 and the volume flowing into the flow channel 1512 can be determined according to the magnitude of the voltage / magnetic field value. For example, the greater the voltage / magnetic field, the longer the flow path of the reflective material 170 in the flow channel 1512, the more the reflective material 170 entering the flow channel 1512, the larger the range of the part of the dimming part in the reflective state, and the larger the anti-peep angle. The smaller the voltage / magnetic field, the smaller the flow path of the reflective material 170 in the flow channel 1512, the less the reflective material 170 entering the flow channel 1512, the smaller the range of the part of the dimming part in the reflective state, the smaller the part that blocks the light, and the smaller the anti-peep angle. Among them, when the voltage / magnetic field is at a preset value, the reflective material 170 can be completely distributed in the flow channel 1512, that is, the first dimming part 1510 and the second dimming part 1511 are completely used to block the light, and the light can only be emitted through the light-transmitting part.

[0117] It is understandable that the reflective material 170 can also flow into or out of the flow channel 1512 only under the control of a specific voltage / specific magnetic field, so that the dimming part is in a reflective state or a transparent state, and the sharing mode and the anti-peeping mode of the display panel 100 are switched. That is: under a predetermined voltage / predetermined magnetic field, the reflective material 170 is driven to flow into the flow channel 1512, the first dimming part 1510 and the second dimming part 1511 are completely in a reflective state, and the display panel 100 is in the anti-peeping mode; under another predetermined voltage / predetermined magnetic field, the reflective material 170 is driven to completely flow out of the flow channel 1512, the first dimming part 1510 and the second dimming part 1511 are completely transparent, and the display panel 100 is in the sharing mode. In this way, the switching between the sharing mode and the anti-peeping mode is realized. By using a specific voltage / specific magnetic field to control the flow in and out of the reflective material 170, the switching between the sharing mode and the anti-peeping mode is simpler and convenient to operate.

[0118] In the embodiment of the present application, the reflective material 170 is a magnetic liquid metal droplet (MLMD), which can control the flow of the reflective material 170 according to the size of the magnetic field.

[0119] In the examples of this application, see Figure 5As shown, the display panel 100 further includes an insulating layer 180, which is disposed on a side of the driving circuit layer 140 away from the base substrate 110, and a light emitting diode 130 and a pixel definition portion 122 are disposed on the side of the insulating layer 180 away from the base substrate 110. That is, when manufacturing the display panel 100, the insulating layer 180 may be manufactured first, and then the pixel definition portion 122 and the light emitting diode 130 may be manufactured after the insulating layer 180 is manufactured, so that the pixel definition portion 122 and the light emitting diode 130 are formed above the insulating layer 180. A groove is disposed on a side of the insulating layer 180 away from the driving circuit layer 140, and the orthographic projection of the groove on the base substrate 110 is located within the orthographic projection of the pixel definition portion 122 on the base substrate 110.

[0120] In the examples of this application, see Figure 5 As shown, the driving structure includes a controller 161, and the controller 161 is arranged in the above-mentioned groove. When preparing the display panel 100, the controller 161 is pre-arranged in the groove, and the controller 161 is electrically connected to the driving circuit layer 140 through a line. The controller 161 can have magnetism under the action of the driving circuit layer 140, and the magnitude of the magnetic field of the controller 161 is determined by the magnitude of the voltage transmitted by the driving circuit layer 140. The controller 161 can be a structure that generates magnetism when electricity is applied, such as an electromagnet.

[0121] In the embodiment of the present application, the side of the accommodating space 1220 close to the base substrate 110 is an opening. The magnetic metal droplet is connected to the controller 161 through this opening, that is, the magnetic metal droplet overlaps the side of the controller 161 away from the base substrate 110. The controller 161 has magnetism under the action of the driving circuit layer 140, and in the anti-peeping mode, the magnetism of this controller 161 is the same as that of the magnetic metal droplet. Through the principle of opposites repel each other, the controller 161 can push the magnetic metal droplet to move to the side away from the base substrate 110, and gradually press into the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511, so that at least part of the first dimming part 1510 and at least part of the second dimming part 1511 are in a reflective state. The controller 161 can also demagnetize or change the magnetism of the controller 161 under the action of the driving circuit layer 140. When changing the magnetism of the controller 161, the driving circuit layer 140 can make the magnetism of the controller 161 opposite to the magnetism of the magnetic metal droplets, so as to drive the magnetic metal droplets to gradually move toward the side close to the base substrate 110, so as to completely recover the magnetic metal droplets in the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 into the containing space 1220, so that the first dimming part 1510 and the second dimming part 1511 are transparent.

[0122] It is understandable that the controller 161 can be in a magnetic or demagnetized state under the action of the driving circuit layer 140 , as long as the magnetic metal droplets in the flow channel 1512 can be discharged back into the receiving space 1220 .

[0123] It is worth mentioning that the flow volume of the magnetic metal droplets flowing into the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 is the same, and the flow rate of the magnetic metal droplets flowing out of the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511 is the same, so that the first dimming part 1510 and the second dimming part 1511 are the same size in the reflective state and the transparent state, so that the light is emitted more evenly.

[0124] In addition, when preparing the dimming unit 151, the light emitting diode 130 may be evaporated first, and then the dimming unit 151 may be prepared. After the evaporation is completed, in order to avoid damage to the components in the light emitting diode 130 when preparing the first dimming unit 1510 and the second dimming unit 1511 and opening the accommodating space 1220, a protective layer is formed on the side of the cathode 133 away from the light emitting unit 132, and the protective layer is removed after the first dimming unit 1510 and the second dimming unit 1511 are prepared.

[0125] It should be understood that when preparing the first dimming unit 1510 and the second dimming unit 1511, a cavity penetrating the pixel defining unit 122 is opened in advance, that is, a receiving space 1220 is opened. Then, the receiving space 1220 is filled with magnetic metal droplets.

[0126] In the examples of this application, see Figure 6 As shown, the display panel 100 further includes a light absorbing member 190, which is disposed on the side of the first dimming portion 1510 and the second dimming portion 1511 away from the base substrate 110, that is, disposed on the back side of the first dimming portion 1510 and the second dimming portion 1511. The light absorbing member 190 can absorb ambient light, and the influence of ambient light on the display effect can be reduced by the light absorbing member 190.

[0127] In the examples of this application, see Figure 2 As shown, the display panel 100 further includes a packaging layer 1000 , which is disposed on a side of the driving circuit layer 140 away from the base substrate 110 . The packaging layer 1000 covers the dimming layer 150 , the pixel definition layer 120 and the light-emitting diode 130 to protect the light-emitting diode 130 and the dimming layer 150 .

[0128] Embodiment 2

[0129] The difference between the second embodiment of the present application and the first embodiment is that, see Figures 7 to 11As shown, the display panel 100 does not use the insulating layer 180, and the reflective material 170 uses metal droplets, which move under the action of voltage.

[0130] In the embodiment of the present application, the metal droplets flow in the receiving space 1220 and the flow channel 1512 through the electrowetting principle to switch between the anti-peeping mode and the sharing mode.

[0131] In the examples of this application, see Fig.10 As shown, the first dimming unit 1510 and the second dimming unit 1511 both include a dimming body 1513, which is a tubular structure and has the flow channel 1512 disposed therein. The driving structure includes a first driving assembly 162, a second driving assembly 163, a third driving assembly 164 and a fourth driving assembly 165.

[0132] In the examples of this application, see Figure 8 As shown, the first driving component 162 and the second driving component 163 are both arranged in the accommodating space 1220, and the first driving component 162 and the second driving component 163 are arranged relative to each other, and the first driving component 162 and the second driving component 163 can drive the metal droplets in the accommodating space 1220 to flow.

[0133] In the examples of this application, see Fig.10 As shown, the third driving component 164 and the fourth driving component 165 are arranged in the dimming body 1513, and the third driving component 164 and the fourth driving component 165 are arranged relative to each other, and the above-mentioned flow channel 1512 is formed between the third driving component 164 and the fourth driving component 165, and the third driving component 164 and the fourth driving component 165 can drive the metal droplets in the flow channel 1512 to flow.

[0134] In the examples of this application, see Figure 8 As shown, the first driving component 162 includes a first hydrophobic layer 1620 and a first transparent electrode layer 1621. The first transparent electrode layer 1621 is arranged on the side of the first hydrophobic layer 1620 away from the metal droplets. The first transparent electrode layer 1621 includes a plurality of first electrode blocks 16210 arranged at intervals. The plurality of first electrode blocks 16210 are all electrically connected to the driving circuit layer 140. The second driving component 163 includes a second hydrophobic layer 1630 and a second transparent electrode layer 1631. The second transparent electrode layer 1631 is arranged on the side of the second hydrophobic layer 1630 away from the liquid metal droplets. The second transparent electrode layer 1631 includes a first transparent electrode arranged on the entire surface, and the first transparent electrode is connected to the driving circuit layer 140.

[0135] It can be understood that, through the principle of electrowetting, different voltages are applied to the first transparent electrode and the first electrode block 16210, and under the action of the first transparent electrode and the first electrode block 16210, the charge on the surface of the metal droplet is changed to increase its hydrophilicity, driving the metal droplets in the accommodating space 1220 to gradually move toward the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511, and gradually enter the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511.

[0136] In the examples of this application, see Fig.10 As shown, the third driving component 164 includes a third hydrophobic layer 1640 and a third transparent electrode layer 1641, the third transparent electrode layer 1641 is arranged on the side of the third hydrophobic layer 1640 away from the metal droplet, and the third transparent electrode layer 1641 includes a plurality of second electrode blocks 16410 arranged at intervals, and the plurality of second electrode blocks 16410 are electrically connected to the driving circuit layer 140. The fourth driving component 165 includes a fourth hydrophobic layer 1650 and a fourth transparent electrode layer 1651, the fourth transparent electrode layer 1651 is arranged on the side of the fourth hydrophobic layer 1650 away from the liquid metal droplet, and the fourth transparent electrode layer 1651 includes a second transparent electrode arranged on the entire surface, and the second transparent electrode is connected to the driving circuit layer 140. The third hydrophobic layer 1640 and the fourth hydrophobic layer 1650 form the above-mentioned flow channel 1512.

[0137] Accordingly, in order to drive the metal droplets to flow in the flow channel 1512, the voltage applied to the second transparent electrode is different from that applied to the second electrode block 16410.

[0138] It should be noted that the first transparent electrode, the first electrode block 16210, the second transparent electrode and the second electrode block 16410 may be transparent electrodes made of transparent indium tin oxide material, or may be transparent electrodes made of other transparent materials.

[0139] In addition, a light absorbing member 190 as described in the first embodiment is also disposed on the back side of the dimming body 1513 . The light absorbing member 190 can absorb ambient light to reduce the influence of ambient light on the display panel 100 .

[0140] It is worth mentioning that the flow rate of the metal droplet flowing into the flow channel 1512 can be controlled according to the voltage, so as to control the anti-peeping angle of the first dimming part 1510 and the second dimming part 1511, thereby achieving a variety of anti-peeping angles.

[0141] Embodiment 3

[0142] The difference between the third embodiment of the present application and the first and second embodiments is that, see Figures 12 to 15As shown, the display panel 100 does not include the insulating layer 180 , and the driving structure includes the electrodeformable material 166 .

[0143] In the examples of this application, see Fig.13 As shown, the electrodeformable material 166 is disposed in the accommodation space 1220, and is attached to the inner side wall and the inner bottom wall of the accommodation space 1220, and the metal droplets are carried in the storage cavity formed by the electrodeformable material 166. The electrodeformable material 166 is electrically connected to the driving circuit layer 140 through the opening on the pixel definition part 122, and can be deformed under the action of the driving circuit layer 140, so as to realize the flow of the metal droplets.

[0144] In the embodiment of the present application, the electrodeformable material 166 can be formed in the accommodation space 1220 by using a mask plate technology, and its bottom is electrically connected to the driving circuit layer 140. Under the action of the driving circuit layer 140, the electrodeformable material 166 changes the pressure in the accommodation space 1220 to squeeze the metal droplets in the accommodation space 1220 into the flow channel 1512, or to make the metal droplets flow back to the accommodation space 1220.

[0145] It is understandable that the electrodeformable material 166 can be prepared before preparing the dimming layer 150 , that is, after preparing the accommodating space 1220 , the electrodeformable material 166 is prepared in the accommodating space 1220 , and then the dimming layer 150 is prepared.

[0146] See also Fig.12 , Fig.14 and Fig.15As shown, when the sharing mode is switched to the anti-peeping mode, the electrodeformable material 166 expands under the action of the driving circuit layer 140, the pressure in the accommodating space 1220 gradually increases, and the metal droplets are squeezed, so that the metal droplets gradually flow into the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511, and at least part of the first dimming part 1510 and the second dimming part 1511 are in a reflective state. The first dimming part 1510 and the second dimming part 1511 in a reflective state can reflect the light emitted by the light-emitting diode 130, thereby realizing the anti-peeping mode. When the anti-peeping mode is switched to the sharing mode, the driving circuit layer 140 disconnects the electrical connection with the electrodeformable material 166, and the electrodeformable material 166 returns to its initial state. The pressure in the accommodating space 1220 gradually decreases, and the metal droplets in the flow channel 1512 of the first dimming section 1510 and the flow channel 1512 of the second dimming section 1511 gradually flow back into the accommodating space 1220. The first dimming section 1510 and the second dimming section 1511 gradually become transparent, and light can be emitted through the first dimming section 1510 and the second dimming section 1511. The first dimming section 1510 and the second dimming section 1511 do not block the light, thereby realizing the sharing mode.

[0147] Embodiment 4

[0148] The difference between the fourth embodiment of the present application and the first, second and third embodiments is that, see Figures 16 to 19 As shown, in the direction from the base substrate 110 to the driving circuit layer 140 , the receiving space 1220 adopts a gradually increasing structure.

[0149] In the embodiment of the present application, the cross-sectional area of ​​the accommodation space 1220 gradually increases in the direction from the base substrate 110 to the pixel definition portion 122, and the accommodation space 1220 is enlarged, and the size is the largest near the first dimming portion 1510 and the second dimming portion 1511. Through this design, the eddy current and turbulence phenomenon of the metal droplet at the connection between the flow channel 1512 of the first dimming portion 1510 and the flow channel 1512 of the second dimming portion 1511 in the accommodation space 1220 can be reduced, so that the liquid enters the flow channel 1512 more smoothly, and the transmission efficiency of the metal droplet can also be improved.

[0150] Embodiment 5

[0151] Embodiment 5 of the present application provides a display device, see Figure 20 to Figure 24 As shown, the display device includes a display unit 200 and a display panel 100 described in any of Embodiments 1 to 4. The display unit 200 can display the light reflected by the first dimming unit 1510 and the second dimming unit 1511, that is, the display unit 200 can display the anti-peeping image to protect the user's privacy.

[0152] See also Figure 20 to Figure 22 As shown, the display unit 200 includes a plurality of mirror components 210 spaced apart from each other, the mirror components 210 are disposed on a side of the base substrate 110 away from the driving circuit layer 140, and an angle is formed between the mirror components 210 and the base substrate 110. The mirror components 210 correspond to the light emitting diodes 130, that is, one light emitting diode 130 corresponds to one mirror component 210. The mirror components 210 can reflect the light reflected by the first dimming unit 1510 and the second dimming unit 1511, and display the anti-peeping image.

[0153] The display device formed in this way can be applied to various customer service counters to protect customer privacy. The display device can make it impossible to observe the anti-peeping picture at a certain viewing angle, and the anti-peeping image can be presented to the customer service staff through the display unit 200, so that the customer's privacy can be better protected in this way.

[0154] In the embodiment of the present application, the display unit 200 further includes a transparent filling layer 220, which is disposed between adjacent mirror components 210. The mirror component 210 includes a silver mirror layer 211 and a light shielding layer 212, wherein the silver mirror layer 211 is disposed on a side of the light shielding layer 212 close to the base substrate 110, and the light reflected by the first adjustment portion and the second adjustment portion is collimated light, which is vertically directed toward the base substrate 110 and then directed onto the silver mirror layer 211, which reflects the collimated light so that part of the collimated light can be emitted through the gap between adjacent mirror components 210. The light shielding layer 212 can absorb and shield the reflected light, and can also prevent the reflected light from mutually reflecting between adjacent silver mirror layers 211, thereby preventing problems such as image confusion.

[0155] In the examples of this application, see Fig.23 As shown, the display unit 200 further includes a mirror, which is folded between the mirror and the mirror assembly 210. The mirror can present the light reflected by the silver mirror layer 211, and present the blocked pattern on the mirror.

[0156] It should be noted that the mirrors and the mirror components 210 are folded to adjust the positions of adjacent mirrors and the mirror components 210 .

[0157] In order to ensure that the image reflected by the display unit 200 is presented in equal proportion, the light reflected by the silver mirror layer 211 forms an angle of 45° with the base substrate 110 .

[0158] See also Fig.24As shown, in order to make the reflected light reflected by the silver mirror layer 211 form an angle of 45° with the base substrate 110, the angle θ formed by the silver mirror layer 211 and the base substrate 110 satisfies: θ=arctanD / L; wherein D is the height of the silver mirror layer 211, and L is the distance between adjacent silver mirror layers 211.

[0159] In the embodiment of the present application, the angle θ is 67.5°. L may be the distance between the centers of adjacent pixel definition portions 122 .

[0160] The present application solution can realize the switch between the anti-peeping mode and the sharing mode through the dimming unit 151, the driving structure and the reflective material 170. And by using the display unit 200 on the back of the display panel 100, the image that is protected by the dimming layer 150 in the anti-peeping mode can be presented on the back, and the privacy of customers can be better protected through such a display device.

[0161] In the description of this specification, the description with reference to the terms "some embodiments", "exemplarily", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0162] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A display panel, comprising a base substrate, a driving circuit layer, a pixel definition layer and a plurality of light emitting diodes arranged on the base substrate, wherein the pixel definition layer is arranged on a side of the driving circuit layer away from the base substrate, the pixel definition layer has a plurality of pixel openings arranged at intervals and a pixel definition portion located between adjacent pixel openings, each of the light emitting diodes is located in one of the pixel openings, characterized in that: The display panel further includes: A dimming layer, comprising a plurality of dimming units, wherein the dimming units correspond to the pixel definition parts one by one, and the dimming units are arranged on the pixel definition parts; the dimming units include a first dimming unit and a second dimming unit, wherein the first dimming unit and the second dimming unit are extended in a direction from the base substrate to the pixel definition layer, and the extension directions of the first dimming unit and the second dimming unit are opposite, a light-transmitting part is formed between the first dimming unit of one of the two adjacent dimming units and the second dimming unit of the other dimming unit, and a flow channel is provided in the first dimming unit and the second dimming unit; A driving structure, electrically connected to the driving circuit layer; A reflective material is disposed in the pixel definition portion, and the reflective material can flow into the flow channel of the first dimming portion and the flow channel of the second dimming portion under the action of the driving structure, or the reflective material can flow out of the flow channel of the first dimming portion and the flow channel of the second dimming portion under the action of the driving structure; Among them, there is no reflective material in the flow channel of the first dimming part and the flow channel of the second dimming part, the first dimming part and the second dimming part are transparent, and the light of the light emitting diode can be emitted through the first dimming part, the second dimming part and the light-transmitting part to realize the sharing mode; the reflective material can flow from the pixel definition part to the flow channel of the first dimming part and the flow channel of the second dimming part under the action of the driving structure, and the reflective material located in the first dimming part and the second dimming part can reflect the light emitted by the light emitting diode to realize the anti-peeping mode.

2. The display panel according to claim 1, characterized in that: The reflective material includes metal droplets; The pixel definition portion is provided with a receiving space which is connected with the flow channel of the first light modulating portion and the flow channel of the second light modulating portion, and the metal droplets are filled in the receiving space.

3. The display panel according to claim 2, characterized in that: The metal droplets can flow into or out of the flow channel of the first dimming part and the flow channel of the second dimming part under the action of voltage / magnetic field, and control the volume of the reflective material flowing into or out of the flow channel of the first dimming part and the flow channel of the second dimming part according to the size of the voltage / magnetic field.

4. The display panel according to claim 3, characterized in that: The side of the accommodation space close to the base substrate is an opening, the reflective material is a magnetic metal droplet, and the magnetic metal droplet moves under the action of a magnetic field; The display panel further comprises an insulating layer, the insulating layer is arranged on a side of the driving circuit layer away from the base substrate, and the light emitting diode and the pixel definition part are arranged on a side of the insulating layer away from the base substrate, a groove is arranged on the insulating layer, and an orthographic projection of the groove on the base substrate is located within an orthographic projection of the pixel definition part on the base substrate; The driving structure includes a controller, the controller is arranged in the groove, the controller is electrically connected to the driving circuit layer, and the controller is connected to the magnetic metal droplet through the opening; Wherein, the controller can, under the action of the driving circuit layer, repel the magnetic metal droplets from flowing into the flow channel of the first regulating part and the flow channel of the second regulating part, so that the magnetic metal droplets fill at least part of the flow channel of the first regulating part and the flow channel of the second regulating part, so that at least part of the first dimming part and the second dimming part are in a reflective state; or, the controller can, under the action of the driving circuit layer, make the magnetic metal droplets located in the flow channel of the first dimming part and the flow channel of the second dimming part flow back into the containing space.

5. The display panel according to claim 3, characterized in that: The first dimming unit and the second dimming unit include a dimming body, the flow channel is provided inside the dimming body, the metal droplets move under the action of voltage, and the driving structure includes: a first driving component, disposed in the accommodating space, the first driving component comprising a first hydrophobic layer and a first transparent electrode layer, the first hydrophobic layer being disposed on a side of the first transparent electrode layer close to the metal droplet, the first transparent electrode layer comprising a plurality of first electrode blocks arranged at intervals, the first electrode blocks being connected to the driving circuit layer; a second driving component, disposed in the accommodating space and arranged opposite to the first driving component, the second driving component comprising a second hydrophobic layer and a second transparent electrode layer, the second hydrophobic layer being disposed on a side of the second transparent electrode layer close to the metal droplet, the second transparent electrode layer being electrically connected to the driving circuit layer, and the metal droplet being able to move under the action of the first electrode block and the second transparent electrode layer; a third driving component, disposed in the dimming body, the third driving component comprising a third hydrophobic layer and a third transparent electrode layer, the third hydrophobic layer being disposed on a side of the third transparent electrode layer away from the inner wall of the dimming body, the third transparent electrode layer comprising a plurality of second electrode blocks arranged at intervals; A fourth driving component is disposed in the dimming body and is arranged opposite to the third driving component. The fourth driving component includes a fourth hydrophobic layer and a fourth transparent electrode layer. The fourth hydrophobic layer is disposed on a side of the fourth transparent electrode layer away from the inner wall of the dimming body. The flow channel is formed between the fourth hydrophobic layer and the third hydrophobic layer. The fourth transparent electrode layer and the second electrode block can drive the metal droplets located in the flow channel to move.

6. The display panel according to claim 3, characterized in that: The driving structure includes an electrodeformable material, the electrodeformable material is disposed in the accommodation space, and the electrodeformable material is overlapped on the driving circuit layer and electrically connected to the driving circuit layer; Among them, the electrodeformable material can be deformed under the action of the driving circuit layer to squeeze the metal droplets to flow into the flow channel of the first dimming part and the flow channel of the second dimming part; or control the metal droplets to flow out from the flow channel of the first dimming part and the flow channel of the second dimming part.

7. The display panel according to claim 1, characterized in that: The dimming unit further includes a light absorbing member, and the light absorbing member is disposed on a side of the first dimming unit and the second dimming unit away from the base substrate; and / or The orthographic projections of the first dimming unit and the second dimming unit on the base substrate partially overlap with the orthographic projection of the light emitting diode on the base substrate.

8. The display panel according to claim 1, characterized in that: The first dimming part and the second dimming part are bent toward the light emitting diode, and the bending directions of the first dimming part and the second dimming part are opposite; The arc angle of the first dimming part and the second dimming part is 90°.

9. A display device, characterized in that: include: Display unit; The display panel according to any one of claims 1 to 8, wherein the display unit comprises a plurality of mirror components spaced apart from each other, the mirror components being arranged on a side of the base substrate away from the driving circuit layer, the mirror components and the base substrate forming an angle, and the mirror components corresponding to the light emitting diodes one by one; Among them, when the first dimming part and the second dimming part are in a reflective state: the mirror component can reflect the light reflected by the first dimming part and the second dimming part on the opposite sides of the transparent part, and the light reflected by the mirror component is emitted through the gap between adjacent mirror components.

10. The display device according to claim 9, characterized in that: The display unit further comprises a transparent filling layer, wherein the transparent filling layer is arranged between adjacent mirror components; The mirror assembly comprises a silver mirror layer and a light shielding layer, wherein the silver mirror layer is arranged on a side of the light shielding layer close to the base substrate, and the silver mirror layer can emit the light reflected by the first adjusting part and the second adjusting part from the gap between adjacent mirror assemblies; The angle θ formed by the silver mirror layer and the base substrate satisfies: θ=arctanD / L; wherein D is the height of the silver mirror layer, and L is the distance between adjacent silver mirror layers.

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