Display panel and display device

Abstract

The application belongs to the technical field and particularly relates to a display panel and a display device, which comprise a substrate substrate, a pixel definition layer, a display light-emitting structure and a light-adjusting structure. The light-adjusting structure comprises a light-adjusting light-emitting diode and a light-adjusting unit. The light-adjusting light-emitting diode comprises a light-adjusting light-emitting part. The light-adjusting unit is located on a side of the light-adjusting light-emitting diode away from the substrate substrate. The light-adjusting unit comprises a first electrode, a second electrode and a light-blocking droplet. When the first electrode and the second electrode are in a power-off state, the orthographic projection of the light-blocking droplet on the substrate substrate completely covers the orthographic projection of the light-adjusting light-emitting part on the substrate substrate. When one of the first electrode and the second electrode is powered on, the light-blocking droplet moves towards the powered-on electrode and contracts, and the orthographic projection of the light-blocking droplet on the substrate substrate partially overlaps the orthographic projection of the light-adjusting light-emitting part on the substrate substrate. The light-adjusting light-emitting part can vertically and obliquely emit light-adjusting light, so that the display panel can not only realize peep prevention but also improve display brightness.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a display panel and display device. Background Technology

[0002] With increasing user awareness of privacy protection, there is a huge market demand for privacy protection technology for display devices. Traditional privacy displays involve attaching a privacy film to the surface of the monitor. The privacy film uses ultra-fine venetian blind technology, which works on a similar principle to vertical venetian blinds. This privacy protection method is simple and convenient, but it seriously affects the viewing experience.

[0003] To address the inability to switch between privacy and display modes, current OLED display panels employ a privacy pixel design. However, the addition of privacy pixels reduces the aperture ratio of the display panel, consequently affecting display quality such as brightness and reliability, including lifespan. Summary of the Invention

[0004] The purpose of this application is to solve the problems in the prior art where the addition of privacy pixels leads to a loss of aperture ratio in the display panel, affecting the brightness and other display quality of the OLED display panel, as well as its lifespan and other reliability issues.

[0005] This application provides a display panel, including a substrate having a display area, and further comprising: a pixel definition layer disposed on the display area of ​​the substrate, the pixel definition layer having a plurality of spaced-apart pixel openings; a plurality of display light-emitting structures, each display light-emitting structure including a display light-emitting diode, each display light-emitting diode including a display light-emitting portion, the display light-emitting portion of each display light-emitting diode being located within one of the pixel openings; and a plurality of dimming structures disposed between adjacent display light-emitting structures and spaced apart from them, each dimming structure including a dimming light-emitting diode and a dimming unit, each dimming light-emitting diode including a dimming light-emitting portion for emitting white light, the dimming light-emitting portion of each dimming light-emitting diode being located within one of the pixel openings; the dimming unit being located within the pixel openings; and a plurality of dimming structures disposed between adjacent display light-emitting structures and spaced-apart from them, each dimming structure including a dimming light-emitting diode and a dimming unit, each dimming light-emitting diode including a dimming light-emitting portion for emitting white light, the dimming unit being located within one of the pixel openings; and a plurality of dimming structures disposed between adjacent display light-emitting structures and spaced-apart from them, the dimming structure including a dimming light-emitting diode and a dimming unit. The dimming light-emitting diode is located on the side away from the substrate. The orthographic projection of the dimming unit on the substrate covers the orthographic projection of the dimming light-emitting diode on the substrate. The dimming unit includes a first electrode and a second electrode disposed opposite to each other, and a light-shielding droplet disposed between the first electrode and the second electrode. When the first electrode and the second electrode are de-energized, the orthographic projection of the light-shielding droplet on the substrate completely covers the orthographic projection of the dimming light-emitting part on the substrate. When one of the first electrode and the second electrode is energized, the light-shielding droplet contracts and moves toward the energized electrode, and the orthographic projection of the light-shielding droplet on the substrate partially overlaps with the orthographic projection of the dimming light-emitting part on the substrate. The dimming light-emitting part can emit dimming light vertically and obliquely.

[0006] In one exemplary embodiment of this application, the first electrode and the second electrode are respectively disposed on the left and right sides of the light-shielding droplet.

[0007] In an exemplary embodiment of this application, both the first electrode and the second electrode are disposed on the side of the light-shielding droplet near the substrate, and the first electrode and the second electrode are spaced apart from each other.

[0008] In one exemplary embodiment of this application, the dimming unit further includes a third electrode disposed between the first electrode and the second electrode, and the light-shielding droplet is capable of contracting and moving between the first electrode, the second electrode and the third electrode under the action of the first electrode, the second electrode and the third electrode.

[0009] In one exemplary embodiment of this application, the third electrode is located on the central symmetry line of the dimming light-emitting portion.

[0010] In one exemplary embodiment of this application, when the first electrode and the second electrode are de-energized and the third electrode is energized, the light-shielding droplets accumulate on the third electrode.

[0011] In one exemplary embodiment of this application, the display panel further includes a driving circuit layer, which includes scan lines, data lines, and common electrode lines. The scan lines and the common electrode lines are disposed on the same layer, and the data lines are disposed on the side of the scan lines away from the substrate. The first electrode is connected to one of the scan lines, the data lines, and the common electrode lines, and the second electrode is connected to the other of the scan lines, the data lines, and the common electrode lines.

[0012] In one exemplary embodiment of this application, the display panel further includes a driving circuit layer, which includes scan lines, data lines, and common electrode lines. The scan lines and the common electrode lines are disposed on the same layer, and the data lines are disposed on the side of the scan lines away from the substrate. The first electrode is connected to one of the scan lines, the data lines, and the common electrode lines, and the second electrode is connected to the other of the scan lines, the data lines, and the common electrode lines. The dimming light-emitting diode further includes a dimming anode, which is disposed on the side of the dimming light-emitting portion close to the substrate. The third electrode is connected to the dimming anode.

[0013] In one exemplary embodiment of this application, the display panel further includes an encapsulation layer, and the dimming unit is embedded in the encapsulation layer.

[0014] A second aspect of this application provides a display device, comprising: a driver chip; and a display panel as described in any of the preceding claims, wherein the display panel is electrically connected to the driver chip.

[0015] The display panel and display device of this application have at least the following beneficial effects:

[0016] The display panel in this application includes a pixel definition layer, a display light-emitting structure, and a dimming structure. The display light-emitting part in the display light-emitting structure can be located within the pixel opening of the pixel definition layer to emit display light. The dimming structure is disposed between adjacent display light-emitting structures. The dimming light-emitting part in the dimming structure can emit white light. The dimming light-emitting part is disposed within the pixel opening of the pixel definition layer and is spaced apart from the display light-emitting part. The dimming unit is disposed on the side of the dimming light-emitting diode away from the substrate. When the first electrode and the second electrode are de-energized, the light-shielding droplet in the dimming unit can completely cover the dimming light-emitting part. The dimming light-emitting part cannot emit light vertically but can only emit light obliquely. The obliquely emitted dimming light can mix the display light emitted by adjacent display light-emitting parts, interfering with information reading at oblique viewing angles, thereby achieving a privacy mode. When one of the first and second electrodes is energized, the light-shielding droplet can contract and move towards the energized electrode. At this time, the orthographic projection of the light-shielding droplet on the substrate partially overlaps with the orthographic projection of the dimming light-emitting unit on the substrate. The dimming light-emitting unit can emit dimming light vertically and obliquely. When the dimming light-emitting unit emits dimming light obliquely, it can mix the light with the light from adjacent display light-emitting units to achieve a privacy mode. When the dimming light-emitting unit emits dimming light vertically, it can supplement the light emitted by the display light-emitting unit at the normal viewing angle. That is, at the normal viewing angle, the light emitted by the display light-emitting structure includes not only its own display light but also the white dimming light emitted by the dimming light-emitting unit, thereby increasing the luminous brightness of the display light-emitting structure and thus increasing the display brightness. Under the same luminous brightness intensity, the supplementary lighting effect of the dimming structure can reduce the luminous power consumption of the display light-emitting structure, reduce the wear rate of the display light-emitting structure, and thus improve the lifespan of the OLED display panel.

[0017] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0020] Figure 1 The diagram shows the arrangement of the display light-emitting structure and dimming structure provided in Embodiments 1 to 4 of this application.

[0021] Figure 2a A cross-sectional schematic diagram of the dimming structure and the display light-emitting structure provided in Embodiment 1 or Embodiment 4 of this application is shown.

[0022] Figure 2b The diagram shows a schematic representation of the privacy viewing angle and display viewing angle provided in Embodiment 1 or Embodiment 4 of this application.

[0023] Figure 3a This diagram illustrates the structure of the light-blocking droplet movement and aggregation provided in Embodiment 1 or Embodiment 4 of this application, showing the emission of light-adjusting rays from the frontal viewing angle on the second electrode side.

[0024] Figure 3b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and accumulation on the second electrode side provided in Embodiment 1 or Embodiment 4 of this application.

[0025] Figure 4a This diagram illustrates the structure of the light-blocking droplet movement and aggregation provided in Embodiment 1 or Embodiment 4 of this application, showing the emission of light-adjusting rays from the first electrode side under a frontal viewing angle.

[0026] Figure 4b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the first electrode side provided in Embodiment 1 or Embodiment 4 of this application.

[0027] Figure 5a A schematic diagram of the structure provided in Embodiment 2 or Embodiment 4 of this application, showing the first electrode and the second electrode disposed below the light-shielding droplet, is shown.

[0028] Figure 5b The diagram shows a schematic representation of the privacy viewing angle and display viewing angle provided in Embodiment 2 or Embodiment 4 of this application.

[0029] Figure 6a This diagram illustrates the structure of the light-blocking droplet movement and aggregation provided in Embodiment 2 or Embodiment 4 of this application, showing the emission of dimming light from the frontal viewing angle on the second electrode side.

[0030] Figure 6b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the second electrode side provided in Embodiment 2 or Embodiment 4 of this application.

[0031] Figure 7a This diagram illustrates the structure of the light-blocking droplet movement and aggregation provided in Embodiment 2 or Embodiment 4 of this application, showing the emission of light-adjusting rays from the first electrode side under a frontal viewing angle.

[0032] Figure 7b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the first electrode side provided in Embodiment 2 or Embodiment 4 of this application.

[0033] Figure 8a A schematic diagram of the dimming unit provided in Embodiment 3 or Embodiment 4 of this application, which includes a third electrode, is shown.

[0034] Figure 8b The diagram shows a schematic representation of the privacy viewing angle and display viewing angle provided in Embodiment 3 or Embodiment 4 of this application.

[0035] Figure 9a This diagram illustrates the structure of the light-blocking droplet movement and aggregation provided in Embodiment 3 or Embodiment 4 of this application, showing the emission of light-adjusting rays from the first electrode side under a frontal viewing angle.

[0036] Figure 9b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the first electrode side provided in Embodiment 3 or Embodiment 4 of this application.

[0037] Figure 10a This diagram illustrates the structure of the light-blocking droplet movement and aggregation provided in Embodiment 3 or Embodiment 4 of this application, showing the emission of light-adjusting rays from the frontal viewing angle on the second electrode side.

[0038] Figure 10b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the second electrode side provided in Embodiment 3 or Embodiment 4 of this application.

[0039] Figure 11a This diagram illustrates the structure provided in Embodiment 3 or Embodiment 4 of this application, showing the movement and aggregation of light-blocking droplets on the third electrode side, and the emission of dimming light from a frontal viewing angle.

[0040] Figure 11b This diagram illustrates the privacy viewing angle and display viewing angle of the light-shielding droplets that move and accumulate on the third electrode side, as provided in Embodiment 3 or Embodiment 4 of this application.

[0041] Figure 12a This illustration shows a schematic diagram of the structure provided in Embodiment 3 or Embodiment 4 of this application, in which the voltage of the increased third electrode is increased, the light-blocking droplets move and gather on the side of the third electrode, and the light-adjusting light is emitted from the frontal viewing angle.

[0042] Figure 12b This diagram illustrates the structure of the privacy viewing angle and display viewing angle provided in Embodiment 3 or Embodiment 4 of this application, where the voltage of the increased third electrode causes light-shielding droplets to move and accumulate on the side of the third electrode.

[0043] Figure 13 The diagram shows the structural schematic of the connection between the driver chip and the display panel provided in Embodiments 1 to 4 of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 10. Display device;

[0046] 100, Display panel; 110, Substrate; 110a, Display area; 110b, Non-display area;

[0047] 120. Pixel definition layer; 121. Pixel aperture; 122. Pixel definition section;

[0048] 130. Displaying a light-emitting structure; 130a. Red type displaying a light-emitting structure; 130b. Green type displaying a light-emitting structure; 130c. Blue type displaying a light-emitting structure; 131. Displaying a light-emitting diode; 1310. Displaying the anode; 1311. Displaying the light-emitting part; 1312. Displaying the cathode;

[0049] 140. Dimming structure; 141. Dimming light-emitting diode; 1410. Dimming anode; 1411. Dimming light-emitting part; 1412. Dimming cathode; 142. Dimming unit; 1420. First electrode; 1421. Second electrode; 1422. Light-shielding droplet; 1423. Third electrode;

[0050] 150. Driver circuit layer; 160. Encapsulation layer; 161. First inorganic encapsulation layer; 162. Organic encapsulation layer; 163. Second inorganic encapsulation layer;

[0051] 200. Driver chip. Detailed Implementation

[0052] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary 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 to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0053] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0056] Example 1

[0057] Embodiment 1 of this application provides a display panel 100, which can be an OLED (organic light-emitting diode) display.

[0058] Figure 1 A schematic diagram of the arrangement of the display light-emitting structure and the dimming structure provided in this application is shown. Figure 2a A cross-sectional schematic diagram of the dimming structure and the display light-emitting structure provided in this application is shown.

[0059] See Figure 1 and Figure 2a As shown, the display panel 100 may include a substrate 110, a pixel definition layer 120, a display light-emitting structure 130, and a dimming structure 140. The substrate 110 may be a rigid substrate made of glass, but is not limited to this; it may also be a flexible substrate made of materials such as polyimide (PI). In other words, the display panel 100 of this application is not limited to a rigid, inflexible panel, but may also be a flexible, bendable panel.

[0060] In some embodiments of this application, see Figure 1 As shown, the substrate 110 has a display area 110a and a non-display area 110b, and the non-display area 110b is disposed around the display area 110a. The pixel definition layer 120, the display light-emitting structure 130 and the dimming structure 140 are all disposed on the display area 110a of the substrate 110.

[0061] It should be understood that, see Figure 2aAs shown, the display panel 100 may also include a driving circuit layer 150. This driving circuit layer 150 may be formed on the substrate 110 before the pixel definition layer 120, the plurality of display light-emitting structures 130 and the dimming structure 140. This driving circuit layer 150 may include circuit structures such as thin film transistors (not shown), scan lines (not shown), data lines (not shown) and common electrode lines (not shown) to drive the light-emitting diodes mentioned later to emit light.

[0062] In some embodiments of this application, see Figure 2a As shown, the pixel definition layer 120 may have a plurality of pixel openings 121 arranged at intervals and pixel definition portions 122 located between adjacent pixel openings 121. In other words, the pixel definition layer 120 as a whole can be regarded as a grid-like hollow structure layer, with the hollowed-out areas being the pixel openings 121 of this embodiment and the non-hollowed-out areas being the pixel definition portions 122 of this embodiment. It should be understood that the surface of this pixel definition portion 122 away from the substrate 110 is planar. For example, this pixel definition layer 120 may be made of a material such as PI.

[0063] See Figure 2a As shown, the display light-emitting structure 130 may include a display light-emitting diode 131, which includes a display anode 1310, a display light-emitting part 1311, and a display cathode 1312 that are stacked sequentially.

[0064] It should be understood that the display anodes 1310 of each display light-emitting diode 131 in the display panel 100 are arranged at intervals to enable each display light-emitting diode 131 to be driven independently. The display cathodes 1312 of each display light-emitting diode 131 can be connected to each other to form a whole surface electrode, thereby reducing processing costs.

[0065] The display anode 1310 may include a first conductive layer (not shown in the figure), which is formed between the substrate 110 and the pixel definition layer 120. That is, in the process of manufacturing the display panel 100, the first conductive layer is first formed on the substrate 110, and then the pixel definition layer 120 is formed. The pixel definition part 122 covers the edge area of ​​the first conductive layer. The edge area of ​​the first conductive layer can be connected to structures such as thin film transistors in the driving circuit layer 150. The pixel opening 121 exposes the middle area of ​​the first conductive layer. The display light-emitting part 1311 is located in the pixel opening 121 and is in contact with the middle area of ​​the first conductive layer.

[0066] For example, the first conductive layer can be a multilayer structure, that is, the first conductive layer can at least include a reflective layer and a high work function material layer stacked sequentially. This high work function material layer can include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium oxide (In2O3); the reflective layer can include silver (Ag). In other words, the first conductive layer can be an ITO / Ag multilayer structure, but it is not limited to this. The first conductive layer can also include a high work function material layer, a reflective layer, and a high work function material layer stacked sequentially, for example, the first conductive layer can also be an ITO / Ag / ITO multilayer structure.

[0067] See Figure 2a As shown, the light-emitting portion 1311 can be located within the pixel opening 121. That is, when manufacturing the display panel 100, the pixel definition layer 120 can be manufactured first, and the light-emitting portion 1311 can be manufactured after the pixel definition layer 120 is completed, so that the light-emitting portion 1311 is formed within the pixel opening 121. For example, this light-emitting portion 1311 can be formed within the pixel opening 121 by means of vapor deposition or the like.

[0068] It should be understood that the display light-emitting part 1311 may include a hole injection layer (not shown in the figure), a hole transport layer (not shown in the figure), an organic light-emitting material layer (not shown in the figure), an electron transport layer (not shown in the figure), and an electron injection layer (not shown in the figure) stacked sequentially. The hole injection layer is in contact with the display anode 1310, and the electron injection layer is in contact with the display cathode 1312. However, it is not limited to this. The display light-emitting part 1311 may also include only the hole transport layer, the light-emitting material layer, and the electron transport layer, or other structures, depending on the actual needs.

[0069] The display cathode 1312 may be formed after the display light-emitting portion 1311 is formed and may be in contact with the display light-emitting portion 1311. This display cathode 1312 may include a low work function material layer comprising Li, Ca, LiF / Ca, LiF / Al, Al, Mg, Ag, Pt, Pd, Ni, Au, Nd, Ir, Cr, BaF2, Ba, their compounds or mixtures thereof. For example, the display cathode 1312 may include a low work function material layer made of a mixture of Ag and Mg.

[0070] It should be understood that multiple display light-emitting structures 130 may be provided in the embodiments of this application, and the display light-emitting part 1311 of the display light-emitting diode 131 of each display light-emitting structure 130 is located in a pixel opening 121.

[0071] In this embodiment, see Figure 1As shown, the multiple display light-emitting structures 130 in the display panel 100 may include various types. The light-emitting parts 1311 of different types of display light-emitting structures 130 emit different colors, such as red type display light-emitting structure 130a, green type display light-emitting structure 130b, and blue type display light-emitting structure 130c. Red type display light-emitting structure 130a means that the light-emitting part 1311 emits red light, green type display light-emitting structure 130b means that the light-emitting part 1311 emits green light, and blue type display light-emitting structure 130c means that the light-emitting part 1311 emits blue light.

[0072] In some embodiments of this application, see Figure 1 and Figure 2a As shown, the dimming structure 140 is disposed between adjacent display light-emitting structures 130 and is arranged at intervals from the display light-emitting structures 130.

[0073] For example, see Figure 1 As shown, a dimming structure 140 is provided between the red type display light-emitting structure 130a and the green type display light-emitting structure 130b, and another dimming structure 140 is provided between the green type display light-emitting structure 130b and the blue type display light-emitting structure 130c. The two dimming structures 140 adjust the adjacent display light-emitting structures 130 to achieve privacy protection and improve display brightness.

[0074] In this context, both the light-emitting structure 130 and the dimming structure 140 can be understood as a sub-pixel in the display panel 100. The red type light-emitting structure 130a, the dimming structure 140, the green type light-emitting structure 130b, the dimming structure 140, and the blue type light-emitting structure 130c can form a pixel unit.

[0075] See Figure 2a As shown, the dimming structure 140 includes a dimming light-emitting diode 141 and a dimming unit 142. See also... Figure 2a As shown, the dimming light-emitting diode 141 may include a dimming anode 1410, a dimming light-emitting portion 1411, and a dimming cathode 1412 stacked sequentially. The dimming light-emitting portion 1411 may be located within a pixel opening 121, that is, the pixel opening 121 contains a display light-emitting portion 1311 and a dimming light-emitting portion 1411, the dimming light-emitting portion 1411 and the display light-emitting portion 1311 are located on the same layer, and the dimming light-emitting portion 1411 may be formed within the pixel opening 121 by means of vapor deposition or the like.

[0076] The dimming light-emitting unit 1411 can be used to emit white light, making its color different from that of the light emitted in the adjacent display light-emitting structure 130. It mixes the light emitted by the display light-emitting unit 1311 to form a good privacy protection when viewed from an oblique angle. In addition, it can also be matched with products with various pixel unit architectures, making it highly versatile.

[0077] In some embodiments of this application, the dimming light-emitting portion 1411 and the display light-emitting portion 1311 are spaced apart from each other to avoid crosstalk between them. The dimming anode 1410 may be disposed on the same layer as the display anode 1310, and may be formed on the side of the driving circuit layer 150 away from the substrate 110. The pixel defining portion 122 covers the edge region of the dimming anode 1410, and the edge region of the dimming anode 1410 may be connected to the thin film transistor structure in the driving circuit layer 150 for transmitting electrical signals to the dimming anode 1410. The pixel opening 121 exposes the middle region of the dimming anode 1410, and the dimming light-emitting portion 1411 is located in the pixel opening 121 and is in contact with the middle region of the dimming anode 1410.

[0078] In some embodiments of this application, the dimming anode 1410 may be a high work function material layer, which may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) or indium oxide (In2O3).

[0079] The dimming cathode 1412 can be formed on the surface of the dimming light-emitting portion 1411 away from the dimming anode 1410. That is, when manufacturing the display device 10, the dimming light-emitting portion 1411 can be formed on the substrate 110 first, and then the dimming cathode 1412 can be formed. This dimming cathode 1412 can be in contact with the surface of the dimming light-emitting portion 1411 away from the dimming anode 1410. For example, the dimming cathode 1412 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, their compounds or mixtures thereof. For example, the dimming cathode 1412 may include a low work function material layer made of a mixture of Ag and Mg.

[0080] The dimming cathode 1412 can be disposed in the same layer as the display cathode 1312 and connected to form a surface electrode, which can reduce the processing difficulty and cost.

[0081] See Figure 2a As shown, the dimming unit 142 can be located on the side of the dimming light-emitting diode 141 away from the substrate 110, and the orthogonal projection of the dimming unit 142 on the substrate 110 covers the orthogonal projection of the dimming light-emitting part 1411 on the substrate 110. See also Figure 2aAs shown, the dimming unit 142 includes a first electrode 1420, a second electrode 1421, and a light-shielding droplet 1422. The first electrode 1420 and the second electrode 1421 are disposed opposite to each other, and the light-shielding droplet 1422 is disposed between the first electrode 1420 and the second electrode 1421. The light-shielding droplet 1422 can shrink and move under the action of the first electrode 1420 and the second electrode 1421.

[0082] In some embodiments of this application, see Figure 2a As shown, the first electrode 1420 and the second electrode 1421 are respectively disposed on the left and right sides of the light-shielding droplet 1422. By controlling the voltage of the first electrode 1420 and the voltage of the second electrode 1421, the contact angle on the light-shielding droplet 1422 is changed, so that the light-shielding droplet 1422 contracts and moves toward the first electrode 1420 or the second electrode 1421, so that the light-shielding droplet 1422 gathers on the side of the first electrode 1420 or the side of the second electrode 1421, thereby increasing the aperture ratio of the single-sided display light-emitting structure 130 and thus improving the display quality.

[0083] It is understandable that by placing the first electrode 1420 and the second electrode 1421 on the left and right sides of the light-shielding droplet 1422, the size occupied in the thickness direction of the substrate 110 can be reduced, thereby reducing the thickness of the display panel 100 and making the display panel 100 thinner.

[0084] Figure 2b A schematic diagram of the privacy viewing angle and display viewing angle provided in this application is shown.

[0085] In some embodiments of this application, see Figure 2a and Figure 2b As shown, when the first electrode 1420 and the second electrode 1421 are in a de-energized state, that is, when the first electrode 1420 and the second electrode 1421 are not energized, the light-shielding droplet 1422 is in its original state. At this time, the light-shielding droplet 1422 is located between the first electrode 1420 and the second electrode 1421, and the orthogonal projection of the light-shielding droplet 1422 on the substrate 110 completely covers the orthogonal projection of the dimming light-emitting part 1411 on the substrate 110. The dimming light-emitting part 1411 cannot emit dimming light perpendicularly, but can only emit dimming light obliquely. Therefore, from an oblique viewing angle, one can see not only the light emitted by the LED 131, but also the light emitted by the dimming LED 141. Since the light emitted by the dimming LED 141 is different from the light emitted by its neighboring LED 131, the light emitted by the dimming LED 141 mixes with the light emitted by its neighboring LED 131, resulting in a different color display and interfering with information reading. In other words, the display screen seen from an oblique viewing angle is a privacy screen.

[0086] For example, the light-blocking droplet 1422 is a black droplet or black ink, etc. See also Figure 2b As shown, when the first electrode 1420 and the second electrode 1421 are not energized, no voltage difference is formed between the first electrode 1420 and the second electrode 1421, the contact angle of the light-shielding droplet 1422 does not change, the light-shielding droplet 1422 is in the initial state, and the orthographic projection of the light-shielding droplet 1422 on the substrate 110 completely covers the orthographic projection of the dimming light-emitting part 1411 on the substrate 110. The light-shielding droplet 1422 completely covers the light emitted by the dimming light-emitting part 1411 at the frontal viewing angle. At the frontal viewing angle, the light emitted by the dimming light-emitting part 1411 cannot be seen, and only the light emitted by the display light-emitting diode 131 can be seen. In other words, the display screen seen at the frontal viewing angle is the normal display screen. From an oblique viewing angle, not only can you see the light emitted by the LED 131, but you can also see the light emitted by the dimming LED 141. Since the light emitted by the dimming LED 141 is different from the light emitted by its neighboring LED 131, the light emitted by the dimming LED 141 mixes with the light emitted by its neighboring LED 131, resulting in a different color display and interfering with information reading. In other words, the display screen seen from an oblique viewing angle is a privacy screen.

[0087] When one of the first electrode 1420 and the second electrode 1421 is energized, a voltage difference is formed between the first electrode 1420 and the second electrode 1421. At this time, the contact angle of the light-shielding droplet 1422 changes. Under the action of the voltage difference formed by the first electrode 1420 and the second electrode 1421, the light-shielding droplet 1422 contracts and moves toward the energized electrode. That is, the light-shielding droplet 1422 contracts and moves toward the first electrode 1420 or the second electrode 1421. The orthographic projection of the light-shielding droplet 1422 on the substrate 110 partially overlaps with the orthographic projection of the dimming light-emitting part 1411 on the substrate 110. The dimming light-emitting part 1411 can emit dimming light vertically and obliquely. From a direct viewing angle, not only can the display light emitted by the LED 131 be seen, but also the white dimming light emitted by the dimming LED 141. Since the dimming light from the dimming LED 141 is white, it can supplement the display light of the LED 131 from a direct viewing angle, enhancing the brightness of the LED 131. Compared to the original method that relies solely on the LED 130 for display, this method reduces the power consumption of the LED 130 while maintaining the same light intensity. By using the dimming structure 140 to supplement the LED 130, the display effect is maintained while reducing the power consumption of the LED 130, thereby extending the lifespan of the OLED display panel 100.

[0088] Furthermore, when the light-blocking droplet 1422 contracts and moves between the first electrode 1420 and the second electrode 1421, the white light emitted by the dimming light-emitting part 1411 can still be seen from the oblique viewing angle. The white light can mix with the display light emitted by the adjacent display light-emitting diode 131, resulting in a different display color and interfering with information reading. The display screen seen from the oblique viewing angle is a privacy screen.

[0089] In other words, this display panel 100 can not only achieve privacy protection, but also enhance the brightness of the display light-emitting structure 130 from a direct viewing angle, reduce the light-emitting power consumption of the display light-emitting structure 130, and improve the lifespan of the OLED display panel 100.

[0090] Figure 3a This paper presents a schematic diagram of the structure provided in this application, showing the movement and aggregation of light-blocking droplets and the emission of light from the second electrode side under a frontal viewing angle. Figure 3b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the second electrode side provided in this application. Figure 4a This paper presents a schematic diagram of the structure provided in this application, showing the movement and aggregation of light-blocking droplets and the emission of light from the first electrode side under a frontal viewing angle. Figure 4b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the first electrode side provided in this application.

[0091] For example, the dimming structure 140 is located between the red display light-emitting structure 130 and the green display light-emitting structure 130. The first electrode 1420 in the dimming unit 142 is close to the red display light-emitting structure 130, and the second electrode 1421 is close to the green display light-emitting structure 130. See also... Figure 3a and 3b As shown, when the second electrode 1421 is energized, the light-shielding droplet 1422 moves towards the second electrode 1421 under the action of the electric field formed by the first electrode 1420 and the second electrode 1421 (the direction of the electric field is towards the green display light-emitting structure 130), causing the light-shielding droplet 1422 to shrink and gather on the side of the second electrode 1421. The dimming light emitted by the dimming light-emitting part 1411 can be emitted in the vertical direction. Since the light-shielding droplet 1422 is close to the green display light-emitting structure 130, the vertical dimming light emitted by the dimming light-emitting part 1411 can supplement the light emitted by the red display light-emitting structure 130. That is, the light emitted by the red display light-emitting structure 130 includes not only the red display light but also the white dimming light of the dimming light-emitting part 1411, thereby increasing the brightness of the red display light-emitting structure 130, increasing the aperture ratio on the side of the red display light-emitting structure 130, and improving the display quality.

[0092] See Figure 4a and Figure 4bAs shown, when the first electrode 1420 is energized, the light-shielding droplet 1422, under the action of the electric field formed by the first electrode 1420 and the second electrode 1421 (the direction of the electric field is towards the red display light-emitting structure 130), contracts and moves towards the first electrode 1420, causing the light-shielding droplet 1422 to gather on the side of the first electrode 1420. The dimming light emitted by the dimming light-emitting part 1411 can be emitted in the vertical direction. Since the light-shielding droplet 1422 is close to the red display light-emitting structure 130, the dimming light emitted by the dimming light-emitting part 1411 can supplement the light emitted by the green display light-emitting structure 130. That is, the light emitted by the green display light-emitting structure 130 includes not only the green display light but also the white dimming light of the dimming light-emitting part 1411, thereby increasing the brightness of the green display light-emitting structure 130, increasing the aperture ratio on the side of the green display light-emitting structure 130, and improving the display quality.

[0093] In other words, under the action of the first electrode 1420 and the second electrode 1421, when the light-shielding droplet 1422 shrinks and moves toward the first electrode 1420 or the second electrode 1421, it can enhance the aperture ratio of the adjacent display light-emitting structure 130, that is, increase the single-sided aperture ratio and improve the display quality.

[0094] It is worth mentioning that by controlling the voltage of the first electrode 1420 and the second electrode 1421, the degree of contraction and movement of the light-shielding droplet 1422 can be controlled. By controlling the voltage of the first electrode 1420 and the second electrode 1421, the light-shielding size and aperture ratio can be precisely controlled, ensuring the privacy angle while improving the display quality.

[0095] In some embodiments of this application, the first electrode 1420 may be connected to one of the scan line, data line and common electrode line in the driving circuit layer 150, and the second electrode 1421 may be connected to the other of the scan line, data line and common electrode line.

[0096] For example, the first electrode 1420 can be connected to a common electrode line, and the second electrode 1421 can be electrically connected to a data line; the first electrode 1420 can be connected to a data line, and the second electrode 1421 can be connected to a common electrode, etc., as long as the droplet can be controlled to contract and move between the first electrode 1420 and the second electrode 1421.

[0097] It is worth mentioning that both the first electrode 1420 and the second electrode 1421 can be made of transparent electrodes, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) or indium oxide (In2O3).

[0098] In some embodiments of this application, see Figure 2aAs shown, the display panel 100 may further include an encapsulation layer 160, which is located on the side of the display light-emitting diode 131 and the dimming light-emitting diode 141 away from the substrate 110. This encapsulation layer 160 includes a first inorganic encapsulation layer 161, an organic encapsulation layer 162, and a second inorganic encapsulation layer 163 stacked sequentially. The dimming unit 142 may be embedded within the second inorganic encapsulation layer 163 to save space occupied by the dimming unit 142 and reduce the thickness of the display panel 100.

[0099] It is understandable that the dimming unit 142 can be a box-shaped structure, with the light-blocking droplet 1422 located inside this box-shaped structure to prevent the light-blocking droplet 1422 from evaporating, thus ensuring the dimming effect and the privacy protection effect.

[0100] In addition, the first electrode 1420 and the second electrode 1421 may be provided with a hydrophobic layer and a dielectric layer on the side near the light-shielding droplet 1422 to ensure the movement of the light-shielding droplet 1422.

[0101] Example 2

[0102] The difference between Embodiment 2 and Embodiment 1 is that the first electrode 1420 and the second electrode 1421 are located below the light-shielding droplet 1422 and are arranged alternately.

[0103] Figure 5a A schematic diagram of the structure provided in this application, showing the first electrode and the second electrode disposed below the light-shielding droplet, is shown. Figure 5b A schematic diagram of the privacy viewing angle and display viewing angle provided in this application is shown.

[0104] Figure 6a This paper presents a schematic diagram of the structure provided in this application, showing the movement and aggregation of light-blocking droplets and the emission of light from the second electrode side under a frontal viewing angle. Figure 6b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the second electrode side provided in this application. Figure 7a This paper presents a schematic diagram of the structure provided in this application, showing the movement and aggregation of light-blocking droplets and the emission of light from the first electrode side under a frontal viewing angle.

[0105] Figure 7b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the first electrode side provided in this application.

[0106] In some embodiments of this application, see Figure 5a and 5b As shown, the first electrode 1420 and the second electrode 1421 are located on the side of the light-shielding droplet 1422 near the substrate 110, and are located on the same layer and arranged at intervals between each other. That is, both the first electrode 1420 and the second electrode 1421 are located below the light-shielding droplet 1422.

[0107] For example, the dimming structure 140 is located between the red display light-emitting structure 130 and the green display light-emitting structure 130. The first electrode 1420 in the dimming unit 142 is close to the red display light-emitting structure 130, and the second electrode 1421 is close to the green display light-emitting structure 130. See also... Figure 6a and Figure 6b As shown, when the second electrode 1421 is energized, the contact angle of the light-shielding droplet 1422 is changed, causing the droplet to contract and move towards the second electrode 1421. This causes the droplet to contract and gather on the side of the second electrode 1421, allowing the dimming light emitted by the dimming light-emitting unit 1411 to be emitted vertically. Since the light-shielding droplet 1422 is close to the green display light-emitting structure 130, the vertical dimming light emitted by the dimming light-emitting unit 1411 can supplement the light emitted by the red display light-emitting structure 130. That is, the light emitted by the red display light-emitting structure 130 includes not only the red display light but also the white dimming light from the dimming light-emitting unit 1411, increasing the brightness of the red display light-emitting structure 130 and thus increasing the aperture ratio on the red display light-emitting structure 130 side, thereby improving display quality. See also... Figure 7a and Figure 7b As shown, when the first electrode 1420 is energized, the contact angle of the light-shielding droplet 1422 is changed, causing the light-shielding droplet 1422 to contract and move towards the first electrode 1420, so that the light-shielding droplet 1422 gathers on the side of the first electrode 1420. The dimming light emitted by the dimming light-emitting part 1411 can be emitted in the vertical direction. Since the light-shielding droplet 1422 is close to the red display light-emitting structure 130, the dimming light emitted by the dimming light-emitting part 1411 can supplement the light emitted by the green display light-emitting structure 130. That is, the light emitted by the green display light-emitting structure 130 includes not only the green display light but also the white light dimming light of the dimming light-emitting part 1411, thereby increasing the brightness of the green display light-emitting structure 130, increasing the aperture ratio on the side of the green display light-emitting structure 130, and improving the display quality.

[0108] Example 3

[0109] The difference between Embodiment 3 and Embodiment 1 is that the dimming unit 142 further includes a third electrode 1423.

[0110] Figure 8a A schematic diagram of the dimming unit provided in this application, which includes a third electrode, is shown. Figure 8b A schematic diagram of the privacy viewing angle and display viewing angle provided in this application is shown. Figure 9a This paper presents a schematic diagram of the structure provided in this application, showing the movement and aggregation of light-blocking droplets and the emission of light from the first electrode side under a frontal viewing angle. Figure 9bThis paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the first electrode side provided in this application. Figure 10a This paper presents a schematic diagram of the structure provided in this application, showing the movement and aggregation of light-blocking droplets and the emission of light from the second electrode side under a frontal viewing angle. Figure 10b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplet movement and aggregation on the second electrode side provided in this application. Figure 11a This paper presents a schematic diagram of the structure provided in this application, showing the movement and accumulation of light-blocking droplets on the third electrode side, and the emission of light from the dimming beam at a frontal viewing angle. Figure 11b This paper presents a schematic diagram of the privacy viewing angle and display viewing angle of the light-shielding droplets moving and accumulating on the third electrode side, as provided in this application. Figure 12a This paper presents a schematic diagram of the structure provided in this application, which shows the movement and accumulation of light-blocking droplets on the side of the third electrode with increased voltage, and the emission of light from the third electrode from a frontal viewing angle. Figure 12b This paper presents a schematic diagram of the structure provided in this application, which shows the privacy viewing angle and display viewing angle of the light-shielding droplet movement and accumulation on the third electrode side due to the increased voltage of the third electrode.

[0111] In some embodiments of this application, see Figure 8a and Figure 8b As shown, the first electrode 1420 and the second electrode 1421 are respectively disposed on the left and right sides of the light-shielding droplet 1422, and the third electrode 1423 is disposed between the first electrode 1420 and the second electrode 1421. The light-shielding droplet 1422 can shrink and move between the first electrode 1420, the second electrode 1421 and the third electrode 1423 under the action of the first electrode 1420, the second electrode 1421 and the third electrode 1423.

[0112] By adding a third electrode 1423 between the first electrode 1420 and the second electrode 1421, the light-shielding droplet 1422 can move to more positions, thereby enabling the light-shielding droplet 1422 to more precisely control its light-shielding size and aperture ratio, thus improving display quality.

[0113] The third electrode 1423 can be made of a transparent electrode, such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO) or indium oxide (In2O3).

[0114] For example, see Figure 8bAs shown, when the first electrode 1420, the second electrode 1421, and the third electrode 1423 are not energized, the orthogonal projection of the light-blocking droplet 1422 on the substrate 110 completely covers the orthogonal projection of the dimming light-emitting part 1411 on the substrate 110. The dimming light-emitting part 1411 cannot emit dimming light perpendicularly, but can only emit dimming light obliquely. Therefore, at an oblique viewing angle, not only can the light emitted by the display light-emitting diode 131 be seen, but also the light emitted by the dimming light-emitting diode 141. Since the light emitted by the dimming light-emitting diode 141 is different from the light emitted by its adjacent display light-emitting diode 131, the light emitted by the dimming light-emitting diode 141 and the light emitted by its adjacent display light-emitting diode 131 mix, resulting in a different display color and interfering with information reading. In other words, the display screen seen at an oblique viewing angle is a privacy screen.

[0115] See Figure 9a and Figure 9b As shown, when the first electrode 1420 is energized and the second electrode 1421 and the third electrode 1423 are de-energized, the contact angle of the light-shielding droplet 1422 changes, and the light-shielding droplet 1422 contracts and moves towards the first electrode 1420 side, causing the light-shielding droplet 1422 to gather on the first electrode 1420 side. The dimming light emitted by the dimming light-emitting part 1411 can be emitted in the vertical direction. Since the light-shielding droplet 1422 is close to the red display light-emitting structure 130, the dimming light emitted by the dimming light-emitting part 1411 can supplement the light emitted by the green display light-emitting structure 130. That is, the light emitted by the green display light-emitting structure 130 includes not only the green display light but also the white dimming light of the dimming light-emitting part 1411, thereby increasing the brightness of the green display light-emitting structure 130, increasing the aperture ratio on the green display light-emitting structure 130 side, and improving the display quality.

[0116] See Figure 10a and Figure 10b As shown, when the second electrode 1421 is energized and the first electrode 1420 and the third electrode 1423 are de-energized, the contact angle of the light-shielding droplet 1422 changes, and the light-shielding droplet 1422 contracts and moves towards the second electrode 1421, causing the light-shielding droplet 1422 to gather on the side of the second electrode 1421. The dimming light emitted by the dimming light-emitting part 1411 can be emitted in the vertical direction. Since the light-shielding droplet 1422 is close to the green display light-emitting structure 130, the dimming light emitted by the dimming light-emitting part 1411 can supplement the light emitted by the red display light-emitting structure 130. That is, the light emitted by the red display light-emitting structure 130 includes not only the red display light but also the white dimming light of the dimming light-emitting part 1411, thereby increasing the brightness of the red display light-emitting structure 130, increasing the aperture ratio on the side of the red display light-emitting structure 130, and improving the display quality.

[0117] See Figure 11a and Figure 11b As shown, when the third electrode 1423 is energized and the first electrode 1420 and the second electrode 1421 are de-energized, the contact angle of the light-shielding droplet 1422 changes, and the light-shielding droplet 1422 gathers at the third electrode 1423. At this time, the dimming light-emitting part 1411 can emit dimming light vertically to its left and right sides, which can supplement the light emitted by the display light-emitting structure 130 on both sides, so as to realize the supplementary light on both sides, improve the aperture ratio of the display light-emitting structure 130 on both sides, and improve the display effect.

[0118] It is understood that in some embodiments, when the light-shielding droplet 1422 gathers at the third electrode 1423, the first electrode 1420 and the second electrode 1421 may also be in an energized state. However, the voltage of the first electrode 1420 and the second electrode 1421 is not equal to the voltage of the third electrode 1423. The voltage of the third electrode 1423 is greater than the voltage of the first electrode 1420 and the second electrode 1421. As long as the light-shielding droplet 1422 can retract and move, it is acceptable.

[0119] It should be noted that the third electrode 1423 can be located at the center of the dimming and light-emitting part 1411, or it can be located slightly to the right or slightly to the left of the center of the dimming and light-emitting part 1411. The specific design can be made according to different embodiments.

[0120] For example, the third electrode 1423 is located at the central symmetry line of the dimming light-emitting section 1411, that is, the third electrode 1423 is located at the middle position of the dimming light-emitting section 1411. When the light-shielding droplet 1422 is located at the third electrode 1423, the orthographic projection of the light-shielding droplet 1422 onto the dimming light-emitting section 1411 is located at the center position of the dimming light-emitting section 1411, so that the amount of light emitted vertically from the left and right sides of the dimming light-emitting section 1411 is equal, thereby making the amount of supplementary light of the display light-emitting structure 130 on the left and right sides the same, so as to ensure that the light brightness of the display light-emitting structure 130 on both sides is the same, and to ensure the display effect of the display panel 100.

[0121] It should be noted that when the light-shielding droplet 1422 is placed at the third electrode 1423, the voltage of the first electrode 1420 and the second electrode 1421 can be turned off, so that the light-shielding droplet 1422 is placed at the third electrode 1423, so as to avoid the change of the first electrode 1420 and the second electrode 1421 from affecting the power consumption of the display device, so that the display panel 100 forms a high-brightness low-power mode.

[0122] In addition, see Figure 12a and Figure 12bAs shown, the size of the light-shielding droplet 1422 can vary according to the voltage of the electrode. When the voltage of the third electrode 1423 is greater, the light-shielding droplet 1422 gathers more towards the third electrode 1423, and the light-shielding area formed by the light-shielding droplet 1422 is smaller, and the display aperture ratio on both sides is larger, so as to further improve the display brightness on the left and right sides, so that the display panel 100 forms an ultra-high brightness mode.

[0123] It is worth mentioning that the third electrode 1423 can be connected to the dimming anode 1410. This way, when the dimming LED 141 is controlled to work, the third electrode 1423 can be turned on, causing the droplets to gather at the third electrode 1423. This not only achieves privacy protection but also improves display brightness and reduces power consumption.

[0124] In addition, since the light-blocking droplets 1422 gather at the third electrode 1423, the light-blocking area of ​​the light-blocking droplets 1422 is small, and the angle at which the dimming and light-emitting part 1411 is emitted obliquely is larger, which makes the anti-spying angle wider and can improve the anti-spying range.

[0125] Example 4

[0126] Figure 13 A schematic diagram of the connection between the driver chip and the display panel provided in this application is shown.

[0127] See Figure 13 As shown, Embodiment 4 of this application provides a display device 10, which includes a driver chip 200 and a display panel 100 as described in Embodiment 1, Embodiment 2 or Embodiment 3. The display panel 100 is electrically connected to the driver chip 200.

[0128] According to the embodiments of this application, the specific type of the display device 10 is not particularly limited. Any type of display device 10 commonly used in the art can be used, such as a display screen, mobile phone, laptop computer and other mobile devices, wearable devices such as watches, VR devices, etc. Those skilled in the art can make the appropriate selection according to the specific purpose of the display device, which will not be elaborated here.

[0129] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0130] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A display panel, comprising a substrate having a display area, characterized in that, The display panel further includes a display area disposed on the substrate: A pixel definition layer having a plurality of spaced pixel openings; Multiple display light-emitting structures, each display light-emitting structure including a display light-emitting diode, each display light-emitting diode including a display light-emitting part, and the display light-emitting part of each display light-emitting diode being located within a pixel opening; Multiple dimming structures are disposed between adjacent display light-emitting structures and spaced apart from them. Each dimming structure includes a dimming light-emitting diode (LED) and a dimming unit. The LED includes a dimming light-emitting portion for emitting white light, and the dimming light-emitting portion of each LED is located within a pixel opening. The dimming unit is located on the side of the LED away from the substrate, and the orthographic projection of the dimming unit on the substrate covers the orthographic projection of the LED on the substrate. The dimming unit includes a first electrode and a second electrode disposed opposite to each other, and a light-shielding droplet disposed between the first electrode and the second electrode. When the first electrode and the second electrode are de-energized, the orthogonal projection of the light-shielding droplet on the substrate completely covers the orthogonal projection of the dimming light-emitting part on the substrate. When one of the first electrode and the second electrode is energized, the light-shielding droplet contracts and moves toward the energized electrode, and the orthogonal projection of the light-shielding droplet on the substrate partially overlaps with the orthogonal projection of the dimming light-emitting part on the substrate. The dimming light-emitting part can emit dimming light vertically and obliquely.

2. The display panel according to claim 1, characterized in that, The first electrode and the second electrode are respectively located on the left and right sides of the light-shielding droplet.

3. The display panel according to claim 1, characterized in that, Both the first electrode and the second electrode are disposed on the side of the light-shielding droplet near the substrate, and the first electrode and the second electrode are spaced apart from each other.

4. The display panel according to claim 2, characterized in that, The dimming unit also includes a third electrode, which is disposed between the first electrode and the second electrode. The light-blocking droplet can shrink and move between the first electrode, the second electrode and the third electrode under the action of the first electrode, the second electrode and the third electrode.

5. The display panel according to claim 4, characterized in that, The third electrode is located on the central symmetry line of the dimming and light-emitting part.

6. The display panel according to claim 5, characterized in that, When the first and second electrodes are de-energized and the third electrode is energized, the light-shielding droplets gather on the third electrode.

7. The display panel according to claim 2, characterized in that, The display panel further includes a driving circuit layer, which includes scan lines, data lines and common electrode lines. The scan lines and the common electrode lines are disposed on the same layer. The data lines are disposed on the side of the scan lines away from the substrate. The first electrode is connected to one of the scan lines, the data lines and the common electrode lines, and the second electrode is connected to the other of the scan lines, the data lines and the common electrode lines.

8. The display panel according to claim 4, characterized in that, The display panel further includes a driving circuit layer, which includes scan lines, data lines and common electrode lines. The scan lines and the common electrode lines are disposed on the same layer. The data lines are disposed on the side of the scan lines away from the substrate. The first electrode is connected to one of the scan lines, the data lines and the common electrode lines, and the second electrode is connected to the other of the scan lines, the data lines and the common electrode lines. The dimming light-emitting diode further includes a dimming anode, which is disposed on the side of the dimming light-emitting part near the substrate, and the third electrode is connected to the dimming anode.

9. The display panel according to claim 1, characterized in that, The display panel also includes an encapsulation layer, and the dimming unit is embedded in the encapsulation layer.

10. A display device, characterized in that, include: Driver chip; The display panel according to any one of claims 1 to 9, wherein the display panel is electrically connected to the driver chip.

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