Display panel and display device

Abstract

The present application belongs to the field of display technology, and specifically relates to a display panel and a display device, wherein the display panel includes a base substrate, a driving circuit layer, a pixel definition layer and multiple light-emitting diode dimming layers, a driving structure and a reflective material, wherein the flow channel of the first dimming part and the flow channel of the second dimming part of the dimming layer do not contain the reflective material, 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 transparent part to realize a sharing mode; the reflective material can flow from the pixel definition part of the pixel definition layer 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 an anti-peeping mode.

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 thin and light, 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 laptops.

[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 to effectively protect business secrets and personal privacy, and avoid business losses or embarrassment caused by the 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 that can realize switching between an anti-peeping function and a sharing function of the display panel.

[0005] In a first aspect, the present application provides a display panel, comprising a base substrate, a driving circuit layer, a pixel definition layer, and a plurality of light-emitting diodes disposed on the base substrate, wherein the pixel definition layer is disposed on a side of the driving circuit layer away from the base substrate, the pixel definition layer having a plurality of spaced-apart pixel openings and a pixel definition portion located between adjacent pixel openings, each of the light-emitting diodes being located within a pixel opening, and the display panel further comprising:

[0006] The dimming layer includes a plurality of dimming units, each corresponding to the pixel definition portion one by one and disposed on the pixel definition portion; the dimming unit includes a first dimming unit and a second dimming unit, the first dimming unit and the second dimming unit extending in a direction from the base substrate to the pixel definition layer, and extending in opposite directions; a light-transmitting portion is formed between the first dimming unit of one dimming unit and the second dimming unit of the other of two adjacent dimming units, and a flow channel is provided in each of the first dimming unit and the second dimming unit;

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

[0008] a reflective material disposed in the pixel defining portion, wherein the reflective material is capable of flowing into the flow channel of the first light modulating portion and the flow channel of the second light modulating portion under the action of the driving structure, or the reflective material is capable of flowing out of the flow channel of the first light modulating portion and the flow channel of the second light modulating portion under the action of the driving structure;

[0009] In which, 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 transparent 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] A receiving space communicating with the flow channel of the first light modulating portion and the flow channel of the second light modulating portion is provided in the pixel defining 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 includes an insulating layer, the insulating layer being disposed on a side of the driving circuit layer away from the base substrate, and the light-emitting diode and the pixel definition portion being disposed on a side of the insulating layer away from the base substrate, the insulating layer being provided with a groove, the orthographic projection of the groove on the base substrate being located within the orthographic projection of the pixel definition portion on the base substrate;

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

[0016] In which, 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 dimming part and the flow channel of the second dimming part, so that the magnetic metal droplets fill at least part of the flow channel of the first dimming part and the flow channel of the second dimming 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 to the holding space.

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

[0018] a first driving assembly disposed in the accommodating space, the first driving assembly 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 assembly disposed in the accommodation space and opposite to the first driving assembly, the second driving assembly 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 an 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] In which, 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 provided 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, comprising:

[0029] Display unit;

[0030] The display panel according to any one of the above items, wherein the display unit comprises a plurality of mirror components spaced apart from each other, the mirror components being disposed on a side of the base substrate away from the driving circuit layer, the mirror components forming an angle with the base substrate, and the mirror components corresponding one to one with the light-emitting diodes;

[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, wherein the transparent filling layer is provided between adjacent mirror components;

[0033] The mirror assembly includes a silver mirror layer and a light shielding layer, wherein the silver mirror layer is provided on a side of the light shielding layer close to the base substrate, and the silver mirror layer is capable of emitting light reflected by the first dimming unit and the second dimming unit 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 of the present application includes a driving circuit layer, a pixel definition layer, a light-emitting diode (LED), a dimming layer, a driving structure, and a reflective material. Under the action of the driving structure, the reflective material flows into the flow channels of the first and second dimming sections of the dimming layer. At least portions of the first and second dimming sections are in a reflective state. The portions of the first and second dimming sections provided with the reflective material are capable of reflecting light emitted by the LED, so that the light emitted by the LED is emitted only through the translucent portion, reducing the light emission angle, and thus the display panel is in an anti-peeping mode. Under the action of the driving structure, the reflective material flows out of the flow channels of the first and second dimming sections, gradually increasing the light emission angle. When the reflective material is completely within the pixel definition section, the first and second dimming sections become transparent, allowing light to escape through the first, second, and translucent portions. Light emitted by the LED is unblocked, and the light emission angle is maximized. The display panel is in a sharing mode. That is to say, the 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 can achieve privacy protection.

[0037] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by 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 accompanying drawings are incorporated into 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 those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0040] Figure 1 A structural schematic diagram showing the arrangement of a non-display area surrounding 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 Example 1 or Example 5 of the present application is shown.

[0042] Figure 3 A structural schematic diagram showing a pixel definition portion provided in the first or fifth embodiment of the present application in which a reflective material is provided is shown.

[0043] Figure 4 A schematic structural diagram of the controller provided in Example 1 or Example 5 of the present application controlling a portion of the reflective material to flow into the flow channel is shown.

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

[0045] Figure 6 A structural schematic diagram showing the first dimming unit and the second dimming unit provided in Examples 1 to 5 of the present application are provided with a light absorbing member.

[0046] Figure 7 A structural schematic diagram showing 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 structural schematic diagram showing a first driving component and a second driving component provided in a pixel definition portion provided in the second or fifth embodiment of the present application is shown.

[0048] Figure 9 A schematic diagram of the structure of the first drive assembly and the second drive assembly provided in Example 2 or Example 5 of the present application controlling part of the reflective material to flow into the flow channel is shown.

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

[0050] Figure 11 A schematic structural diagram 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 the flow of all reflective materials into the flow channel is shown.

[0051] Figure 12 A schematic structural diagram of the electrodeformable material provided in the third or fifth embodiment of the present application is shown.

[0052] Figure 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] Figure 14 A schematic structural diagram of the electrodeformable material provided in the third or fifth embodiment of the present application pressing part of the reflective material into the flow channel is shown.

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

[0055] Figure 16 A structural schematic diagram showing 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.

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

[0057] Figure 18 A schematic structural diagram of the electrodeformable material provided in the fourth or fifth embodiment of the present application is shown.

[0058] Figure 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] Figure 20 A structural schematic diagram of a display panel and a display unit provided in a fifth embodiment of the present application is shown.

[0060] Figure 21 A schematic structural diagram of another display panel and display unit provided in the fifth embodiment of the present application is shown.

[0061] Figure 22 A structural schematic diagram of another display panel and display unit provided in the fifth embodiment of the present application is shown.

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

[0063] Figure 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 unit; 1220, accommodation space; 130, light-emitting diode; 131, anode; 132, light-emitting unit; 133, cathode; 140, driving circuit layer; 150, dimming layer; 151, dimming unit; 1510, first dimming unit; 1511, second dimming unit; 1512, flow channel; 1513, dimming body; 161, controller; 162, first driving assembly; 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, electrodestructive 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, light-shielding 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 many 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 thorough and complete and will fully convey the concepts 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 to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0068] In this application, unless otherwise specified or limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on 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 so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art 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, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0070] Example 1

[0071] The first embodiment of the present application provides a display panel 100, which may be an OLED (organic light emitting diode) display panel 100. The display panel 100 may include a base substrate 110, a pixel definition layer 120, and a light emitting diode 130. 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. The non-display area 112 may be disposed around the display area 111. 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. This driving circuit layer 140 may be formed on the base substrate 110 before the pixel definition layer 120 and the light-emitting diode 130. This 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 here.

[0073] For example, the base substrate 110 can be a rigid substrate made of glass, but is not limited to this. It can 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 being a rigid, non-bendable panel, but can 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, wherein the hollow areas are the pixel openings 121 for forming pixels in this embodiment, and the non-hollow areas are the pixel definition portions 122 in 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 connected to each other 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 have a multilayer structure, that is, the conductive layer may include at least 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). In other words, the conductive layer may have an ITO / Ag multilayer structure, 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 have an ITO / Ag / ITO multilayer structure.

[0081] The light-emitting portion 132 may be located within 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 within the pixel opening 121. For example, the light-emitting portion 132 may be formed within the pixel opening 121 by vapor deposition or other methods.

[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 containing Li, Ca, LiF / Ca, LiF / Al, Al, Mg, Ag, Pt, Pd, Ni, Au, Nd, Ir, Cr, BaF2, Ba, compounds thereof, or mixtures 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 corresponds 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 portions 132 of different types of light-emitting diodes 130 have different light-emitting colors, such as: 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 a light-emitting portion 132 with a red light-emitting color, the green type light-emitting diode 130 refers to a light-emitting portion 132 with a green light-emitting color, and the blue type light-emitting diode 130 refers to a light-emitting portion 132 with 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 this 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 manufacturing 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 this application, Figure 2 As shown, the dimming layer 150 includes a plurality of dimming units 151 , and each dimming unit 151 is disposed on the pixel definition portion 122 .

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

[0090] In the embodiments of this application, Figure 2 As shown, the first dimming unit 1510 and the second dimming unit 1511 extend in opposite directions.

[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 this application, Figure 2 As shown, the orthographic projection of the first dimming portion 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 portion 1511 on the base substrate 110 also partially overlaps with the orthographic projection of the light-emitting diode 130 on the base substrate 110. This allows for a wider privacy protection angle when the reflective material 170 subsequently enters the first dimming portion 1510 and the second dimming portion 1511.

[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 this 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 this application, Figure 2As shown, both the first dimming section 1510 and the second dimming section 1511 are arc-shaped structures that are bent toward the LED 130. The bending direction of the first dimming section 1510 is opposite to that of the second dimming section 1511. For example, if the bending direction of the first dimming section 1510 is to the left, the bending 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 LEDs 130.

[0097] In the embodiments of this 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 section 1510 and the second dimming section 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 section 1510 in a reflective state and the wall of the second dimming section 1511 in a reflective state.

[0099] It should be understood that according to the principle of concave mirror, 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 light modulating unit 1510 and the second light modulating 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 of one light-modulating unit 151 and the second light-modulating unit 1511 of the other light-modulating unit 151. The LED 130 can emit light through this light-transmitting portion in both the privacy mode and the shared mode.

[0101] In an 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 that the angle is normal in the sharing mode and further ensuring that the picture display is normal.

[0102] In the embodiments of this application, Figure 2As shown, the first dimming unit 1510 and the second dimming unit 1511 are each provided with a flow channel 1512. The flow channel 1512 can be used to inject the reflective material 170 described below, so that the first dimming unit 1510 and the second dimming unit 1511 are in a reflective state. When light is emitted to the first dimming unit 1510 and the second dimming unit 1511, it will be vertically reflected back to the light-emitting diode 130 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, which is electrically connected to the driving circuit layer 140 and drives the flow of the reflective material 170 described below.

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

[0105] In the embodiments of this 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 portion 122. The pixel definition portion 122 equipped with the reflective material 170 is interconnected with the flow channel 1512 of the first dimming portion 1510 and the flow channel 1512 of the second dimming portion 1511, so that the reflective material 170 can flow into the flow channel 1512 of the first dimming portion 1510 and the flow channel 1512 of the second dimming portion 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 portion 1510 and the flow channel 1512 of the second dimming portion 1511 under the action of the driving structure.

[0106] It should be noted that this reflective material 170 is not limited to being located in the pixel definition portion 122, but can also be located 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 pipe; of course, it can also be located in other positions 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 within the pixel definition section 122, and 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, and 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 exit the display panel 100. The viewing angle is maximized, 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. The part of the flow channel 1512 of the first dimming part 1510 where the reflective material 170 is provided 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 where the reflective material 170 is provided 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 transparent part where the reflective material 170 is not provided. The smaller the light emission angle, the smaller the viewing angle for the outside world to obtain information, 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] This application utilizes 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 achieve both a shared mode and an anti-peeping mode. The driving structure drives the reflective material 170 into the flow channels 1512 of the first dimming unit 1510 and the second dimming unit 1511 to achieve switching between the shared mode and the anti-peeping mode, making switching between the two modes simpler and more convenient.

[0110] In the embodiments of this application, Figure 4As shown, a receiving space 1220 is defined within the pixel defining portion 122. This receiving space 1220 is a cavity extending through the thickness of the base substrate 110. This receiving space 1220 is filled with a reflective material 170. The first dimming unit 1510 and the second dimming unit 1511 are spaced apart and disposed above this receiving space 1220 and communicate with the interior of the receiving space 1220.

[0111] It should be noted that in order to fix the dimming unit 151, the top of this 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 understood that this plane can be formed on the upper side of the pixel definition portion 122 when the first dimming portion 1510 and the second dimming portion 1511 are manufactured to cover the accommodation space 1220. Alternatively, the plane can be formed on the pixel definition portion 122 when the first dimming portion 1510 and the second dimming portion 1511 are manufactured 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 force, magnetic field or voltage, and 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 within the flow channel 1512 and the volume of the reflective material 170 flowing into the flow channel 1512 can be determined by the voltage / magnetic field values. For example, the greater the voltage / magnetic field, the longer the flow path of the reflective material 170 within the flow channel 1512, the greater the amount of reflective material 170 entering the flow channel 1512, the larger the reflective area of ​​the dimming portion, and the greater the privacy protection angle. The smaller the voltage / magnetic field, the smaller the flow path of the reflective material 170 within the flow channel 1512, the less reflective material 170 entering the flow channel 1512, the smaller the reflective area of ​​the dimming portion, the smaller the light blocking area, and the smaller the privacy protection angle. When the voltage / magnetic field is at a preset value, the reflective material 170 can completely fill the flow channel 1512, meaning that the first dimming portion 1510 and the second dimming portion 1511 completely block light, allowing light to escape only through the light-transmitting portion.

[0117] It is understood 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, causing the dimming portion to be reflective or transparent, thereby switching the display panel 100 between the shared mode and the privacy protection mode. Specifically, under one predetermined voltage / predetermined magnetic field, the reflective material 170 is driven into the flow channel 1512, causing the first and second dimming portions 1510, 1511 to be fully reflective, and the display panel 100 to be in the privacy protection mode. Under another predetermined voltage / predetermined magnetic field, the reflective material 170 is driven completely out of the flow channel 1512, causing the first and second dimming portions 1510, 1511 to be fully transparent, and the display panel 100 to be in the shared mode. This allows switching between the shared mode and the privacy protection mode to be achieved. By utilizing a specific voltage / specific magnetic field to control the flow of the reflective material 170, switching between the shared mode and the privacy protection mode is simplified and convenient.

[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 magnitude 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. This insulating layer 180 is disposed on a side of the driving circuit layer 140 away from the base substrate 110. The light-emitting diodes 130 and the pixel definition portion 122 are disposed on this side of the insulating layer 180 away from the base substrate 110. Specifically, when manufacturing the display panel 100, the insulating layer 180 can be fabricated first, followed by the pixel definition portion 122 and the light-emitting diodes 130, so that the pixel definition portion 122 and the light-emitting diodes 130 are formed above the insulating layer 180. A groove is disposed on the 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, which is disposed within the aforementioned groove. When manufacturing the display panel 100, the controller 161 is pre-placed within the groove and electrically connected to the driving circuit layer 140 via wiring. The controller 161 is magnetically activated by the driving circuit layer 140, and the magnitude of the magnetic field generated by the controller 161 is determined by the voltage transmitted by the driving circuit layer 140. The controller 161 can be a structure that generates magnetism when energized, 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 connects 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. In the anti-peeping mode, the magnetism of the controller 161 is the same as that of the magnetic metal droplet. Based on the principle of opposites repel, the controller 161 can push the magnetic metal droplet to move toward the side away from the base substrate 110 and gradually press it into the flow channel 1512 of the first dimming unit 1510 and the flow channel 1512 of the second dimming unit 1511, so that at least a portion of the first dimming unit 1510 and at least a portion of the second dimming unit 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 to 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 emission is more uniform.

[0124] Furthermore, 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, to prevent 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 accommodation space 1220, a protective layer is formed on the side of the cathode 133 away from the light-emitting unit 132. This 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 pre-formed, ie, the receiving space 1220 is formed. Magnetic metal droplets are then filled into the receiving space 1220.

[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 a side of the first dimming portion 1510 and the second dimming portion 1511 facing away from the base substrate 110, that is, 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, thereby reducing the impact of ambient light on the display effect.

[0127] In the examples of this application, see Figure 2 As shown, the display panel 100 further includes an encapsulation layer 1000 , which is disposed on a side of the driving circuit layer 140 away from the base substrate 110 . The encapsulation 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] Example 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 according to the electrowetting principle to switch between the anti-peeping mode and the sharing mode.

[0131] In the examples of this application, see Figure 10 As shown, the first dimming unit 1510 and the second dimming unit 1511 each include a dimming body 1513, which is a tubular structure and has the aforementioned 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 drive component 162 and the second drive component 163 are both arranged in the accommodating space 1220, and the first drive component 162 and the second drive component 163 are arranged relative to each other. The first drive component 162 and the second drive component 163 can drive the metal droplets in the accommodating space 1220 to flow.

[0133] In the examples of this application, see Figure 10 As shown, the third drive component 164 and the fourth drive component 165 are arranged in the dimming body 1513, and the third drive component 164 and the fourth drive component 165 are arranged relative to each other, and the above-mentioned flow channel 1512 is formed between the third drive component 164 and the fourth drive component 165, and the third drive component 164 and the fourth drive 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 disposed 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, and each of the plurality of first electrode blocks 16210 is 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 disposed 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 disposed entirely on the 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. 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, so that its hydrophilicity is increased, and the metal droplets in the accommodating space 1220 are driven 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 Figure 10 As shown, the third driving assembly 164 includes a third hydrophobic layer 1640 and a third transparent electrode layer 1641. The third transparent electrode layer 1641 is disposed on the side of the third hydrophobic layer 1640 away from the metal droplets. The third transparent electrode layer 1641 includes a plurality of spaced-apart second electrode blocks 16410, which are electrically connected to the driving circuit layer 140. The fourth driving assembly 165 includes a fourth hydrophobic layer 1650 and a fourth transparent electrode layer 1651. The fourth transparent electrode layer 1651 is disposed on the side of the fourth hydrophobic layer 1650 away from the liquid metal droplets. The fourth transparent electrode layer 1651 includes a second transparent electrode disposed throughout the entire surface, which is connected to the driving circuit layer 140. The third hydrophobic layer 1640 and the fourth hydrophobic layer 1650 form the aforementioned flow channel 1512.

[0137] Accordingly, in order to drive the metal droplets to flow in the flow channel 1512 , the voltages applied to the second transparent electrode and the second electrode block 16410 are different.

[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, the light absorbing element 190 as described in the first embodiment is also provided on the back side of the dimming body 1513 . The light absorbing element 190 can absorb ambient light to reduce the impact of the 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, thereby controlling the anti-peeping angle of the first dimming part 1510 and the second dimming part 1511, thereby achieving multiple anti-peeping angles.

[0141] Example 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 Figure 13 As shown, the electrodeformable material 166 is disposed within the accommodation space 1220, attached to the inner sidewalls and inner bottom wall of the accommodation space 1220. The metal droplets are held 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 openings in the pixel defining portion 122. The electrodeformable material 166 is deformed by the driving circuit layer 140, thereby enabling the flow of the metal droplets.

[0144] In the embodiment of the present application, the electrodeformable material 166 can be formed in the receiving space 1220 using a mask technique, with its bottom 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 receiving space 1220, thereby squeezing the metal droplets in the receiving space 1220 into the flow channel 1512 or causing the metal droplets to flow back into the receiving space 1220.

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

[0146] See also Figure 12 、 Figure 14 and Figure 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, causing the metal droplets to gradually flow into the flow channel 1512 of the first dimming part 1510 and the flow channel 1512 of the second dimming part 1511. 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 part 1510 and the flow channel 1512 of the second dimming part 1511 gradually flow back into the accommodating space 1220. The first dimming part 1510 and the second dimming part 1511 gradually become transparent, and light can be emitted through the first dimming part 1510 and the second dimming part 1511. The first dimming part 1510 and the second dimming part 1511 do not block the light, thereby realizing the sharing mode.

[0147] Example 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 accommodating 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. The accommodation space 1220 is enlarged, with its largest size near the first dimming portion 1510 and the second dimming portion 1511. This design can reduce eddy currents and turbulence in the metal droplets at the junction of 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, allowing the liquid to enter the flow channel 1512 more smoothly and improving the transmission efficiency of the metal droplets.

[0150] Example 5

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

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

[0153] The display device formed in this manner can be used at various customer service counters to protect customer privacy. Using this display device, the anti-peeping image can be rendered invisible at certain viewing angles, while the anti-peeping image can be displayed to customer service personnel via the display unit 200, thereby better protecting customer privacy.

[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 assemblies 210. The mirror assemblies 210 include a silver mirror layer 211 and a light shielding layer 212. The silver mirror layer 211 is disposed on the side of the light shielding layer 212 close to the base substrate 110. The light reflected by the first dimming unit 1510 and the second dimming unit 1511 is collimated light. The collimated light is emitted vertically toward the base substrate 110 and then onto the silver mirror layer 211. The silver mirror layer 211 reflects the collimated light, allowing some of the collimated light to be emitted through the gap between adjacent mirror assemblies 210. The light shielding layer 212 can absorb and block the reflected light. The light shielding layer 212 can also prevent the reflected light from mutually reflecting between adjacent silver mirror layers 211, thereby avoiding problems such as image confusion.

[0155] In the examples of this application, see Figure 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 a blocked pattern on the mirror.

[0156] It should be noted that the mirrors and the mirror assemblies 210 are folded to adjust the positions of adjacent mirrors and the mirror assemblies 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 Figure 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; where 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 defining portions 122 .

[0160] The present invention utilizes the dimming unit 151, the driving structure, and the reflective material 170 to switch between the anti-privacy mode and the sharing mode. Furthermore, the display unit 200 on the back of the display panel 100 can display the image that is blocked by the dimming layer 150 in the anti-privacy mode on the back, thereby better protecting the privacy of the user.

[0161] In the description of this specification, the reference terms "some embodiments", "exemplarily", etc. mean 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of 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 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 disposed on the base substrate, wherein the pixel definition layer is disposed on a side of the driving circuit layer away from the base substrate, the pixel definition layer having a plurality of spaced pixel openings and a pixel definition portion located between adjacent pixel openings, each light-emitting diode being located within a pixel opening, wherein: The display panel further includes: The dimming layer includes a plurality of dimming units, each corresponding to the pixel definition portion one by one and disposed on the pixel definition portion; the dimming unit includes a first dimming unit and a second dimming unit, the first dimming unit and the second dimming unit extending in a direction from the base substrate to the pixel definition layer, and extending in opposite directions; a light-transmitting portion is formed between the first dimming unit of one dimming unit and the second dimming unit of the other of two adjacent dimming units, and a flow channel is provided in each of the first dimming unit and the second dimming unit; a driving structure electrically connected to the driving circuit layer; a reflective material disposed in the pixel defining portion, wherein the reflective material is capable of flowing into the flow channel of the first light modulating portion and the flow channel of the second light modulating portion under the action of the driving structure, or the reflective material is capable of flowing out of the flow channel of the first light modulating portion and the flow channel of the second light modulating portion under the action of the driving structure; In which, 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 transparent 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, wherein: The reflective material includes metal droplets; A receiving space communicating with the flow channel of the first light modulating portion and the flow channel of the second light modulating portion is provided in the pixel defining portion, and the metal droplets are filled in the receiving space.

3. The display panel according to claim 2, wherein: 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, wherein: The side of the accommodating space close to the base substrate is open, 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 includes an insulating layer, the insulating layer being disposed on a side of the driving circuit layer away from the base substrate, and the light-emitting diode and the pixel definition portion being disposed on a side of the insulating layer away from the base substrate, the insulating layer being provided with a groove, the orthographic projection of the groove on the base substrate being located within the orthographic projection of the pixel definition portion on the base substrate; The driving structure includes a controller, which is disposed in the groove, electrically connected to the driving circuit layer, and connected to the magnetic metal droplet through the opening; In which, 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 dimming part and the flow channel of the second dimming part, so that the magnetic metal droplets fill at least part of the flow channel of the first dimming part and the flow channel of the second dimming 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 to the holding space.

5. The display panel according to claim 3, wherein: 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 assembly disposed in the accommodating space, the first driving assembly 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 assembly disposed in the accommodation space and opposite to the first driving assembly, the second driving assembly 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 an 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, wherein: 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; In which, 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, wherein: The dimming unit further includes a light absorbing member, and the light absorbing member is provided 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, wherein: 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; 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 disposed on a side of the base substrate away from the drive circuit layer, the mirror components forming an angle with the base substrate, and the mirror components corresponding to the light-emitting diodes on a one-to-one basis; 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, wherein The display unit further comprises a transparent filling layer, wherein the transparent filling layer is provided between adjacent mirror components; The mirror assembly includes a silver mirror layer and a light shielding layer, wherein the silver mirror layer is provided on a side of the light shielding layer close to the base substrate, and the silver mirror layer is capable of emitting light reflected by the first dimming unit and the second dimming unit 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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