Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a plurality of first areas and a plurality of second areas, the plurality of first areas and the plurality of second areas are arranged alternately, and the display panel further comprises a substrate, a light adjusting layer, a light emitting functional layer and a conductive control part. The light adjusting layer is arranged on one side of the substrate, the light adjusting layer comprises a plurality of light adjusting parts arranged separately in the plurality of second areas, and the plurality of light adjusting parts are arranged at intervals. The light emitting functional layer is arranged on the side, away from the substrate, of the light adjusting part, and the light emitting functional layer comprises a plurality of light emitting structures arranged separately in the plurality of first areas. The conductive control part is located on the same side of the substrate as the light adjusting layer, and the conductive control part is configured to form an electric field passing through the light adjusting part to change the light transmittance of the light adjusting part. The orthographic projection of the conductive control part on the substrate is located outside the orthographic projection of the light emitting structure on the substrate, and the plurality of conductive control parts are arranged correspondingly to the plurality of light adjusting parts to independently adjust the transmittance of different light adjusting parts.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels and display panels using light-emitting diode (LED) devices are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices. Summary of the Invention

[0003] This application provides a display panel and display device that can achieve zoned control of the transparency of the display panel.

[0004] In a first aspect, embodiments of this application provide a display panel, which includes a plurality of first areas and a plurality of second areas, wherein the plurality of first areas and the plurality of second areas are alternately arranged, and the display panel further includes:

[0005] Substrate;

[0006] A light conditioning layer is disposed on one side of a substrate. The light conditioning layer includes multiple light conditioning portions disposed in multiple second regions, and the multiple light conditioning portions are spaced apart from each other.

[0007] A light-emitting functional layer is disposed on the side of the light-adjusting section away from the substrate, and the light-emitting functional layer includes multiple light-emitting structures disposed in multiple first regions;

[0008] The conductive control section is located on the same side of the substrate as the light conditioning layer. The conductive control section is configured to generate an electric field through the light conditioning section to change the transmittance of the light conditioning section to light.

[0009] The conductive control unit is projected onto the substrate outside the projection of the light-emitting structure onto the substrate, and multiple conductive control units are correspondingly arranged with multiple light-adjusting units to independently adjust the transmittance of different light-adjusting units.

[0010] In some embodiments, the light modulation layer includes an electrochromic layer, the light modulation part includes an electrochromic part located within the electrochromic layer, and a plurality of electrochromic parts are spaced apart.

[0011] The conductivity control unit is used to adjust the color of the electrochromic unit;

[0012] In some embodiments, the material in the electrochromic layer includes tungsten trioxide;

[0013] In some embodiments, the light-modulating layer further includes an electrolyte layer and an ion storage layer stacked with the electrochromic layer, and the light-modulating part includes an electrolyte part located in the electrolyte layer and an ion storage part located in the ion storage layer, with a plurality of ion storage parts spaced apart and a plurality of electrolyte parts spaced apart.

[0014] In some embodiments, the material in the ion storage layer includes vanadium pentoxide.

[0015] In some embodiments, the light-modulating layer further includes a composite material layer stacked with the electrochromic layer, the composite material layer comprising a plurality of different material layers stacked alternately;

[0016] The light-adjusting section includes composite material sections located within the composite material layer, with multiple composite material sections spaced apart.

[0017] In some embodiments, the composite material layer includes a first material layer and a second material layer, wherein the material in the first material layer includes tungsten trioxide and the material in the second material layer includes vanadium pentoxide;

[0018] In some embodiments, the light conditioning layer further includes an ion conditioning layer located between the composite material layer and the electrochromic layer, and the light conditioning unit includes an ion conditioning unit located within the ion conditioning layer, with a plurality of ion conditioning units spaced apart.

[0019] In some embodiments, the material in the ion conditioning layer includes nickel oxide.

[0020] In some embodiments, the conductive control unit includes a first electrode located on the side of the light adjustment unit facing the substrate, and a second electrode located on the side of the light adjustment unit away from the substrate.

[0021] The number of first electrodes is multiple, and the multiple first electrodes are spaced apart from each other and are arranged corresponding to different light adjustment units;

[0022] In some embodiments, multiple second electrodes of multiple light-adjusting units are connected and integrally disposed;

[0023] In some embodiments, the plurality of second electrodes are connected in a mesh structure;

[0024] In some embodiments, the display panel further includes a cathode layer disposed on the side of the light-emitting functional layer away from the substrate, the cathode layer including a cathode structure, the cathode structure being connected to the same signal as the second electrode.

[0025] In some embodiments, a plurality of control circuits are also included, each of which is electrically connected to a different first electrode;

[0026] At least some of the control circuits are set up independently of each other;

[0027] In some embodiments, the control circuit includes a transformer module;

[0028] In some embodiments, the control circuit further includes a voltage detection module, which is electrically connected to the output terminal and the trigger terminal of the transformer module. The voltage detection module is used to detect the voltage value at the output terminal of the transformer module and feed the detected voltage back to the trigger terminal of the transformer module. The transformer module controls its output terminal to continue outputting or turn off the output voltage according to the detected voltage.

[0029] In some embodiments, the display panel includes a first display area and a second display area arranged side by side in a first direction, and both the first display area and the second display area include a plurality of first areas and a plurality of second areas;

[0030] The input terminals of the transformer modules of multiple control circuits located in the first display area are all electrically connected to the first signal line, and the input terminals of the transformer modules of multiple control circuits located in the second display area are all electrically connected to the second signal line. The first signal line and the second signal line are insulated from each other.

[0031] In some embodiments, the light-emitting functional layer further includes an anode layer disposed on the substrate side of the light-emitting functional layer and a plurality of pixel circuits. The anode layer includes a plurality of anode structures, which are disposed corresponding to a plurality of light-emitting structures. The plurality of pixel circuits are electrically connected to different anode structures respectively.

[0032] The display panel also includes a third signal line disposed on the substrate, and the input terminals of the pixel circuit and the control circuit are both electrically connected to the third signal line.

[0033] In some embodiments, the display panel further includes a selection module, and the third signal line is electrically connected to the pixel circuit and the control circuit through the selection module;

[0034] In some embodiments, the third signal line is used to transmit at least one of a data signal and a reset signal.

[0035] In some embodiments, the light-emitting functional layer further includes an anode layer disposed on the side of the light-emitting functional layer facing the substrate. The anode layer includes a plurality of anode structures, and the plurality of anode structures are disposed corresponding to a plurality of light-emitting structures.

[0036] The light-modulating part is located on the side of the anode structure facing the substrate, or the light-modulating part and the anode structure are at the same height in the thickness direction of the substrate;

[0037] In some embodiments, the display panel further includes a pixel definition layer disposed on one side of the substrate. The pixel definition layer includes a pixel defining portion and a plurality of pixel openings and light-transmitting openings formed by the pixel defining portion. The plurality of pixel openings and the plurality of light-transmitting openings are arranged alternately.

[0038] In this configuration, the light-emitting structure and the anode structure are both set to correspond to the pixel opening, and the light-adjusting part is set to correspond to the light-transmitting opening;

[0039] In some embodiments, the display panel further includes a pixel definition layer disposed on one side of the substrate, the pixel definition layer including a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion;

[0040] Both the light-emitting structure and the anode structure are set to correspond to the pixel opening, the pixel defining part is set to cover the light-adjusting part, and the pixel defining layer includes a light-transmitting material.

[0041] In some embodiments, multiple adjacent light-emitting structures together form a pixel unit, and the orthographic projection of the light-adjusting part onto the substrate is located between the orthographic projections of adjacent pixel units onto the substrate.

[0042] In some embodiments, a plurality of pixel units are arranged in an array in a first direction and a second direction, both of which are parallel to the plane of the substrate and intersect each other;

[0043] In the first direction, the light adjustment unit is located between adjacent pixel units, and / or, in the second direction, the light adjustment unit is located between adjacent pixel units;

[0044] In some embodiments, the display panel further includes an encapsulation functional layer disposed on the side of the light-emitting functional layer opposite to the substrate, wherein the orthographic projection of the encapsulation functional layer on the substrate covers the orthographic projection of the plurality of light-emitting structures and the plurality of light-adjusting parts on the substrate.

[0045] Secondly, embodiments of this application provide a display device, including the display panel in any of the foregoing embodiments.

[0046] In some embodiments, the display panel further includes a photosensitive element and an integrated circuit, and the display panel further includes a plurality of control circuits, each of which controls a different conductive control unit;

[0047] Both the control circuit and the photosensitive element are electrically connected to the integrated circuit;

[0048] In some embodiments, the photosensitive element and the display panel are spaced apart;

[0049] In some embodiments, the integrated circuit and the photosensitive element are spaced apart;

[0050] In some embodiments, the display panel includes a conductive section, which includes a main connecting segment and a plurality of branch connecting segments connected in parallel to the main connecting segment. The main connecting segment is electrically connected to an integrated circuit, and the branch connecting segments are electrically connected to a control circuit.

[0051] This application provides a display panel and display device. By providing a light adjustment layer and positioning it on the side of the light-emitting functional layer facing the substrate, the influence of the light adjustment layer on the light emission structure is reduced. Furthermore, this application further adjusts the structure of the light adjustment layer. Instead of being a single-surface structure, the light adjustment layer includes multiple light adjustment sections located in a second region, while the light-emitting structure is located in a first region. This staggered distribution of the multiple light adjustment sections and multiple light-emitting structures allows the light adjustment sections to adjust the transmittance of the display panel only in the second region without changing the transmittance in the first region, thereby further reducing the influence of the light adjustment sections on the brightness of the light-emitting structure and improving the display effect.

[0052] Furthermore, since multiple light-adjusting sections are correspondingly arranged with multiple conductive control sections, different conductive control sections correspond to different electric field states, allowing the light-adjusting sections in different areas to have different transmittances, thereby achieving zoned control of the display panel's transparency. Moreover, the orthographic projection of the conductive control section onto the substrate is located outside the orthographic projection of the light-emitting structure onto the substrate. This reduces the impact of the presence of the conductive control section and the light-adjusting layer on the electrical connection between the pixel circuit and the anode structure. The pixel circuit can be directly electrically connected to the anode structure without going through the conductive control section, thus achieving independent control of the display panel's light-emitting and light-transmitting functions. Therefore, when the light-emitting structure is operating, the conductive control section can selectively adjust the corresponding light-adjusting section to a transparent state to display environmental information, or it can selectively adjust the corresponding light-adjusting section to a light-blocking state to achieve privacy protection and enhance display contrast. Attached Figure Description

[0053] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0055] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0056] Figure 3 This is a cross-sectional structural diagram of a light adjustment section in a display panel provided in an embodiment of this application;

[0057] Figure 4 This is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0058] Figure 5This is a simplified schematic diagram of a control circuit in a display panel provided in an embodiment of this application;

[0059] Figure 6 This is a simplified circuit diagram of another display panel provided in the embodiments of this application;

[0060] Figure 7 This is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0061] Figure 8 This is a cross-sectional structural diagram of another display panel provided in an embodiment of this application;

[0062] Figure 9 This is a schematic diagram of the structure of a display device provided in an embodiment of this application;

[0063] Figure 10 This is a simplified schematic diagram illustrating the relationship between a display panel and an integrated circuit in a display device provided in an embodiment of this application.

[0064] Marker explanation:

[0065] 10. Substrate;

[0066] 20. Light conditioning layer; 21. Light conditioning section; 22. Electrochromic layer; 221. Electrochromic section; 23. Electrolyte layer; 231. Electrolyte section; 24. Ion storage layer; 241. Ion storage section; 25. Composite material layer; 251. Composite material section; 26. Ion conditioning layer; 261. Ion conditioning section;

[0067] 30. Emissive functional layer; 31. Emissive structure; 32. Pixel unit;

[0068] 40. Conductivity control unit; 41. First electrode; 42. Second electrode;

[0069] 51. Anode structure; 52. Cathode structure;

[0070] 61. Control circuit; 611. Transformer module; 612. Voltage detection module; 62. Pixel circuit; 63. Selection module;

[0071] 70. Conducting section; 71. Main connecting section; 72. Branch connecting section;

[0072] 80. Pixel definition layer; 81. Pixel limiting section; 82. Pixel opening; 83. Light-transmitting opening;

[0073] 91. Integrated circuit; 92. Photosensitive element;

[0074] A1, Zone 1; A2, Zone 2; A3, First Display Zone; A4, Second Display Zone;

[0075] X, first direction; Y, second direction; Z, thickness direction. Detailed Implementation

[0076] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0077] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0078] With the advancement of science and technology, transparent display devices are gradually permeating people's daily lives. In many application scenarios, display devices need to switch between transparent and non-transparent display modes. However, in related technologies, to meet this need, transparent subpixels can be set within the display device. These transparent subpixels usually cannot be adjusted independently, meaning the transparent display mode cannot be turned off. This design sacrifices display quality and presents privacy protection deficiencies.

[0079] In other related technologies, a functional film layer is provided beneath the sub-pixels, capable of switching between a light-blocking state and a transparent state. The presence of this functional film layer allows the display device to have both transparent and non-transparent display modes. However, this functional film layer is usually a full-surface structure, making it impossible to make specific adjustments for different areas of the display panel.

[0080] Regarding the above issues, firstly, please refer to [link / reference needed]. Figure 1 and Figure 2This application provides a display panel including multiple first regions A1 and multiple second regions A2, which are arranged alternately. The display panel also includes a substrate 10, a light-adjusting layer 20, a light-emitting functional layer 30, and a conductivity control unit 40. The light-adjusting layer 20 is disposed on one side of the substrate 10 and includes multiple light-adjusting parts 21 disposed in the multiple second regions A2, with the multiple light-adjusting parts 21 spaced apart from each other. The light-emitting functional layer 30 is disposed on the side of the light-adjusting parts 21 facing away from the substrate 10 and includes multiple light-emitting structures 31 disposed in the multiple first regions A1.

[0081] The conductive control unit 40 and the light-adjusting layer 20 are located on the same side of the substrate 10. The conductive control unit 40 is configured to form an electric field passing through the light-adjusting layer 21 to change the transmittance of the light-adjusting layer 21 to light. The orthographic projection of the conductive control unit 40 onto the substrate 10 is outside the orthographic projection of the light-emitting structure 31 onto the substrate 10, and multiple conductive control units 40 are correspondingly arranged with multiple light-adjusting layers 21 to independently adjust the transmittance of different light-adjusting layers 21.

[0082] The display panel includes multiple first areas A1 and second areas A2. First area A1 is the region in the display panel that performs the light-emitting display function, and second area A2 is the region in the display panel that can freely switch between a transparent state and a light-blocking state. The multiple first areas A1 and second areas A2 are arranged alternately; that is, there is a second area A2 between the two closest first areas A1, and a first area A1 between the two closest second areas A2. Optionally, the multiple first areas A1 and multiple second areas A2 are arranged alternately in the first direction X and the second direction Y. Both the first direction X and the second direction Y are parallel to the plane of the substrate 10 and intersect each other. Further, the first direction X and the second direction Y are perpendicular to each other.

[0083] The display panel provided in this application embodiment can be applied to a variety of application scenarios. For example, the display panel can be applied to environments such as exhibition halls, smart homes, and in-vehicle displays. In these scenarios, users can freely switch between transparent display mode and non-transparent display mode through the display panel provided in this application embodiment to meet different display needs under different circumstances.

[0084] Next, the structure of the display panel will be described in detail in this application embodiment. The substrate 10 is a film layer structure in the display panel that plays a supporting and carrying role. Other film layers are stacked on the substrate 10 in sequence. The stacking arrangement mentioned here means that the other film layers are arranged in sequence along the thickness direction Z of the substrate 10. The thickness direction Z of the other film layers located on one side of the substrate 10 is usually consistent with the thickness direction Z of the substrate 10 itself. Therefore, for the sake of convenience, the thickness direction Z of the substrate 10 or the thickness direction Z of other film layers mentioned in the following embodiments of this application will be shown in the same direction.

[0085] The light adjustment layer 20, the light-emitting functional layer 30, and the conductivity control unit 40 are disposed on the same side of the substrate 10. The light-emitting functional layer 30 is a functional film layer in the display panel that realizes the light-emitting function. The light-emitting functional layer 30 includes a plurality of light-emitting structures 31. The embodiments of this application do not limit the types and number of light-emitting structures 31. Exemplarily, the plurality of light-emitting structures 31 include, but are not limited to, a red light-emitting structure 31 for emitting red light, a green light-emitting structure 31 for emitting green light, and a blue light-emitting structure 31 for emitting blue light.

[0086] The light-emitting structures 31 are disposed within the first region A1, and at least some of the different light-emitting structures 31 are located in different first regions A1. A single first region A1 may contain only one light-emitting structure 31, or multiple light-emitting structures 31 may be disposed simultaneously within a single first region A1. Furthermore, when multiple light-emitting structures 31 are disposed within a single first region A1, the multiple light-emitting structures 31 may be arranged along a single direction, or they may be arranged along different directions.

[0087] The light-adjusting layer 20 is a film layer that can adjust the light. The light-adjusting layer 20 is located on the side of the light-emitting functional layer 30 facing the substrate 10. That is, during the preparation process, the light-adjusting layer 20 is prepared before the light-emitting functional layer 30, and the light-adjusting layer 20 is located on the back side of the light-emitting structure 31. This helps to reduce the influence of the light-adjusting layer 20 on the light emission of the light-emitting structure 31.

[0088] Unlike related technologies, the light-adjusting layer 20 in this embodiment is not a full-surface structure, but includes multiple light-adjusting sections 21 spaced apart. These sections 21 are distributed within multiple second zones A2, meaning the orthographic projection of the light-adjusting section 21 onto the substrate 10 is outside the orthographic projection of the light-emitting structure 31 onto the substrate 10. Furthermore, this embodiment also sets the number of conductive control sections 40 to multiple, with each conductive control section 40 corresponding to one of the multiple light-adjusting sections 21. The orthographic projection of the conductive control section 40 onto the substrate 10 is also outside the orthographic projection of the light-emitting structure 31 onto the substrate 10. This design allows for zoned control of the display panel's transparency while ensuring the independence of the display panel's light-emitting and light-transmitting functions.

[0089] Specifically, the conductivity control unit 40 is a structure that controls the transmittance of the light adjustment unit 21. The conductivity control unit 40 can control the light adjustment unit 21 to switch between a transparent state and a light-blocking state using an electric field. For example, the conductivity control unit 40 includes electrode structures located on both sides of the light adjustment unit 21. The two electrode structures can cooperate to form an electric field structure. Based on this, when the conductivity control unit 40 does not form an electric field structure, the light adjustment unit 21 can be in a transparent state, at which time light can pass through the light adjustment unit 21. When the conductivity control unit 40 forms an electric field structure, the light adjustment unit 21 can be in a light-blocking state, at which time light cannot pass through the light adjustment unit 21.

[0090] Since multiple conductive control units 40 and light adjustment units 21 are provided and corresponding to each other, by assigning different electric field states to different conductive control units 40, the light adjustment units 21 in different areas can have different transmittances. For example, in some scenarios, the conductive control units 40 in multiple second zones A2 within a specific area can be set to not form an electric field structure, so that the multiple light adjustment units 21 in that area can all be transparent. For another specific area, the conductive control units 40 in multiple second zones A2 within that area can be set to form an electric field structure, so that the multiple light adjustment units 21 in that area can all be light-blocking. Thus, the display panel can be in transparent and non-transparent display modes in different areas at the same time, thereby achieving zoned control of the display panel's transparency.

[0091] It should be noted that the "adjustment of the transmittance of the light adjustment unit 21 by the conductive control unit 40" mentioned in the embodiments of this application can refer to the conductive control unit 40 only being able to adjust the transmittance of the light adjustment unit 21 to 0 or 100%, even if the light adjustment unit 21 is in a completely transparent state or a completely light-blocking state. Or, in some other embodiments, in addition to these two states, the conductive control unit 40 can also adjust the transmittance of the light adjustment unit 21 to 20%, 40%, 60%, and 80%, even if the light adjustment unit 21 is in a semi-transparent state. The embodiments of this application do not impose any limitations on this.

[0092] Furthermore, to meet the light-emitting requirements of the light-emitting structure 31, multiple light-emitting structures 31 need to be correspondingly provided with multiple pixel circuits 62, multiple anode structures 51, and cathode structures 52. The anode structures 51 and cathode structures 52 work together to control different light-emitting structures 31 to achieve the light-emitting function. The pixel circuits 62 are electrically connected to the anode structures 51 to drive the anode structures 51. The pixel circuits 62 are located on the side of the light-emitting functional layer 30 facing the substrate 10, and at least a portion of the conductive control unit 40 and the light adjustment layer 20 are also located on the side of the light-emitting functional layer 30 facing the substrate 10. Based on this, if the light adjustment layer 20 is a full-surface structure, the presence of the conductive control unit 40 and the light adjustment layer 20 will affect the electrical connection between the pixel circuits 62 and the anode structures 51. Therefore, the pixel circuits often need to be electrically connected to the conductive control unit 40 first, and then electrically connected to the anode structures 51 through the conductive control unit 40. This results in the light-emitting function and light-transmitting function of the display panel not being able to be controlled independently, thus failing to flexibly meet the different needs of the display panel under different conditions.

[0093] However, in this embodiment, the light adjustment layer 20 includes a plurality of light adjustment sections 21 spaced apart, and a plurality of conductive control sections 40 are correspondingly arranged with the plurality of light adjustment sections 21. The orthographic projections of the conductive control sections 40 and the light adjustment sections 21 onto the substrate are both located outside the orthographic projection of the light-emitting structure 31 onto the substrate. The orthographic projection of the light-emitting structure 31 onto the substrate and the corresponding orthographic projection of the pixel circuit 62 onto the substrate are typically overlapping. Therefore, this design can reduce the impact of the presence of the conductive control sections 40 and the light adjustment layer 20 on the electrical connection between the pixel circuit 62 and the anode structure 51. The pixel circuit 62 can be directly electrically connected to the anode structure 51 without going through the conductive control sections 40, thereby achieving independent control of the light-emitting and light-transmitting functions of the display panel. Optionally, the light adjustment layer 20 and the light-emitting functional layer 30 can be precisely aligned using photolithography, so that the error value between them in the direction parallel to the plane of the substrate is no greater than 1 μm.

[0094] It should be noted that, in this embodiment, although the pixel circuit 62 and the anode structure 51 can be electrically connected to each other without the need for the conductive control unit 40, the pixel circuit 62 can be electrically connected to the conductive control unit 40 through other circuit modules or functional modules. For example, the output terminal of the pixel circuit 62 can be connected to two signal lines. One signal line is electrically connected to the anode structure 51 to satisfy the light-emitting function of the display panel, and the other signal line is electrically connected to a specific module structure and then electrically connected to the conductive control unit 40 through the module structure. In this way, the module structure and the pixel circuit 62 work together to adjust the transmittance of the light adjustment unit 21, that is, to adjust the light transmission function of the display panel. This design makes the electric field structure of the conductive control unit 40 not only limited to the control of the pixel circuit 62, but also subject to the influence of other module structures. In this way, the light-emitting function and the light transmission function of the display panel can be independently controlled.

[0095] In summary, in this embodiment, by providing a light adjustment layer 20 and positioning it on the side of the light-emitting functional layer 30 facing the substrate 10, the influence of the light adjustment layer 20 on the light emission of the light-emitting structure 31 is reduced. Furthermore, this embodiment adjusts the structure of the light adjustment layer 20. The light adjustment layer 20 is not a single-surface structure, but includes multiple light adjustment sections 21. The light adjustment sections 21 are located in the second region A2, and the light-emitting structure 31 is located in the first region A1. That is, the multiple light adjustment sections 21 and the multiple light-emitting structures 31 are staggered. This way, the light adjustment sections 21 only adjust the transmittance of the display panel in the second region A2 without changing the transmittance in the first region A1, thereby further reducing the influence of the light adjustment sections 21 on the brightness of the light-emitting structure 31 and improving the display effect.

[0096] Furthermore, since multiple light adjustment units 21 are correspondingly arranged with multiple conductive control units 40, different conductive control units 40 correspond to different electric field states, thereby allowing the light adjustment units 21 in different areas to have different transmittances, thus achieving zoned control of the display panel's transparency. Moreover, the orthographic projection of the conductive control unit 40 onto the substrate 10 is located outside the orthographic projection of the light-emitting structure 31 onto the substrate 10. This reduces the impact of the presence of the conductive control unit 40 and the light adjustment layer 20 on the electrical connection between the pixel circuit 62 and the anode structure 51. The pixel circuit 62 can be directly electrically connected to the anode structure 51 without going through the conductive control unit 40, thus achieving independent control of the display panel's light-emitting and light-transmitting functions. Thus, when the light-emitting structure 31 is operating, the conductive control unit 40 can selectively adjust the corresponding light adjustment unit 21 to a transparent state to display environmental information, or the conductive control unit 40 can selectively adjust the corresponding light adjustment unit 21 to a light-blocking state to achieve privacy protection and enhance display contrast.

[0097] In some embodiments, please refer to Figures 1 to 3 The light adjustment layer 20 includes an electrochromic layer 22, and the light adjustment unit 21 includes an electrochromic unit 221 located within the electrochromic layer 22, with multiple electrochromic units 221 spaced apart. The conductivity control unit 40 is used to adjust the color of the electrochromic unit 221.

[0098] The electrochromic layer 22 is a structure capable of undergoing stable and reversible color changes under the action of an applied electric field. The electrochromic layer 22 exhibits reversible changes in color and transparency. The thickness of the electrochromic layer 22 is not limited in this embodiment; optionally, the thickness of the electrochromic layer 22 is H1, where H1 satisfies: 150nm ≤ H1 ≤ 200nm.

[0099] The electrochromic layer 22 includes an electrochromic material that can undergo lithium-ion insertion or extraction under an electric field, thereby changing its transmittance. The specific type of electrochromic material is not limited in this embodiment. Exemplarily, the electrochromic material includes at least one of inorganic and organic electrochromic materials. Inorganic electrochromic materials may include tungsten trioxide, and organic electrochromic materials may include polythiophene compounds and their derivatives, violetin compounds, tetrathiofulvalene compounds, metal phthalocyanine compounds, etc. Optionally, the material in the electrochromic layer 22 includes tungsten trioxide.

[0100] Furthermore, in this embodiment, the electrochromic layer 22 is not a full-surface structure, but includes multiple electrochromic portions 221 spaced apart. Multiple conductive control portions 40 are respectively disposed corresponding to the multiple electrochromic portions 221 to adjust the color of each electrochromic portion 221, thereby adjusting the transmittance of the light adjustment portion 21. This enables the display panel to switch between transparent and non-transparent display modes, meeting different needs in different application scenarios and demonstrating strong practicality and flexibility.

[0101] Furthermore, compared to related technologies that use a liquid crystal layer to switch between transparent and non-transparent display modes, the electrochromic layer 22 in this embodiment has a faster state switching efficiency, which helps to improve the switching rate of the display panel between different modes and enhance the user experience.

[0102] In some embodiments, please refer to Figures 1 to 3 The light-adjusting layer 20 also includes an electrolyte layer 23 and an ion storage layer 24 stacked with the electrochromic layer 22. The light-adjusting unit 21 includes an electrolyte unit 231 located in the electrolyte layer 23 and an ion storage unit 241 located in the ion storage layer 24. A plurality of ion storage units 241 are spaced apart, and a plurality of electrolyte units 231 are spaced apart.

[0103] The electrochromic layer 22 undergoes a redox reaction under the influence of an electric field and voltage, resulting in a color change. The electrolyte layer 23 is composed of a special conductive material, such as a solution or gel electrolyte containing lithium perchlorate, sodium perchlorate, etc., or a lithium perchlorate-propylene carbonate-polymethyl methacrylate system. The ion storage layer 24 stores corresponding counterions, such as lithium ions or hydrogen ions, during the redox reaction of the electrochromic layer 22, maintaining the charge balance of the entire system. The ion storage layer 24 can also be an electrochromic material with opposite color-changing properties to that of the electrochromic layer 22, thus achieving color superposition or complementarity. Optionally, the material in the ion storage layer 24 includes vanadium pentoxide.

[0104] The thickness of the ion storage layer 24 and the electrolyte layer 23 is not limited in this embodiment. Optionally, the thickness of the electrolyte layer 23 is H2, where H2 satisfies: 50nm ≤ H2 ≤ 80nm. The thickness of the ion storage layer 24 is H3, where H3 satisfies: 50nm ≤ H3 ≤ 70nm.

[0105] Furthermore, in this embodiment, since the light adjustment layer 20 includes a plurality of light adjustment parts 21 spaced apart, and the plurality of electrochromic parts 221 are spaced apart from each other, the structures of the ion storage layer 24 and the electrolyte layer 23 are also adjusted. The electrolyte layer 23 is configured to include a plurality of electrolyte parts 231, and the ion storage layer 24 includes a plurality of ion storage parts 241. The ion storage parts 241 and the electrolyte parts 231 are all corresponding to the electrochromic parts 221. In this way, the orthographic projections of the ion storage parts 241, the electrolyte parts 231, and the electrochromic parts 221 on the substrate are all located outside the orthographic projection of the light-emitting structure 31 on the substrate, thereby reducing the impact on the light emission brightness of the light-emitting structure 31 and improving the display effect. At the same time, it is also possible to realize the zoned control of the transparency of the display panel, as well as the independent control of the light emission function and the light transmission function of the display panel.

[0106] In some embodiments, the light-adjusting layer 20 further includes a composite material layer 25 stacked with the electrochromic layer 22, the composite material layer 25 comprising a plurality of different material layers stacked alternately. The light-adjusting portion 21 includes a composite material portion 251 located within the composite material layer 25, with the plurality of composite material portions 251 spaced apart.

[0107] The composite material layer 25 comprises multiple layers of different materials, which are alternately stacked. For example, the composite material layer 25 includes a first material layer and a second material layer, which are alternately stacked; that is, there is a second material layer between two adjacent first material layers, and a first material layer between two adjacent second material layers. During the fabrication of the composite material layer 25, different materials can be deposited alternately to form multiple alternately stacked layers of different materials.

[0108] In this embodiment, the light-adjusting layer 20 includes a composite material layer 25. Since the light-adjusting layer 20 includes multiple light-adjusting portions 21 spaced apart, the structure of the composite material layer 25 is adjusted. The composite material layer 25 includes multiple composite material portions 251, with corresponding arrangements of the composite material portions 251 and electrochromic portions 221. This ensures that the orthographic projections of both the composite material portions 251 and the electrochromic portions 221 onto the substrate are outside the orthographic projection of the light-emitting structure 31 onto the substrate, thereby reducing the impact on the brightness of the light-emitting structure 31 and improving the display effect. Furthermore, the composite material layer 25, by having multiple alternatingly stacked layers of different materials, forms a stepped impedance distribution, thereby increasing the material ion mobility and improving the switching rate of the light-adjusting portions between different states. For example, the material ion mobility in the composite material layer 25 is increased to 10. - 5 cm 2 The switching time is reduced to about 0.3 seconds, while the corresponding film material in related technologies is only 10 V·s. -7 cm 2 The switching time is approximately / V·s and the switching time is greater than 0.3 seconds.

[0109] The embodiments of this application do not limit the material composition of the different material layers in the composite material layer 25. In some embodiments, the composite material layer 25 includes a first material layer and a second material layer, wherein the material in the first material layer includes tungsten trioxide and the material in the second material layer includes vanadium pentoxide. Further optionally, the ratio of tungsten trioxide to vanadium pentoxide is 5:1. The embodiments of this application also do not limit the thickness of the composite material layer 25. Optionally, the thickness of the composite material layer 25 is H4, where H4 satisfies: 100nm ≤ H4 ≤ 150nm.

[0110] In some embodiments, the light conditioning layer 20 further includes an ion conditioning layer 26 located between the composite material layer 25 and the electrochromic layer 22, and the light conditioning unit 21 includes an ion conditioning unit 261 located within the ion conditioning layer 26, with a plurality of ion conditioning units 261 spaced apart.

[0111] In this embodiment, the light adjustment layer 20 includes an ion adjustment layer 26. Since the light adjustment layer 20 includes a plurality of light adjustment parts 21 spaced apart, the structure of the ion adjustment layer 26 is adjusted to include a plurality of ion adjustment parts 261. The ion adjustment parts 261 are correspondingly arranged with the electrochromic parts 221. In this way, the orthographic projections of the ion adjustment parts 261 and the electrochromic parts 221 on the substrate are both located outside the orthographic projection of the light-emitting structure 31 on the substrate, thereby reducing the impact on the light emission brightness of the light-emitting structure 31 and improving the display effect.

[0112] Furthermore, the ion adjustment layer 26 is used to regulate ion mobility and reduce the risk of cracking of the composite material layer 25 due to ion overload. Thus, through the combined action of the composite material layer 25 and the ion adjustment layer 26, and by using electric field structures of varying intensities, the light adjustment unit 21 can achieve linear adjustment of its transmittance between 10% and 90%. That is, the light adjustment unit 21 is not limited to transmittance of 0% or 100%, but can also be a specific value between 10% and 90%. This design can further improve the transmittance flexibility of the display panel in transparent display mode.

[0113] For example, taking a display panel applied to museum display case glass, sunlight tends to shine on different areas of the display panel at different times, and the light intensity also varies at different times. Based on this, through the cooperation of multiple conductive control units 40 and multiple light adjustment units 21, the transparency of the display panel can be controlled in zones, thereby meeting the different transparency requirements corresponding to areas where sunlight is present and areas where sunlight is absent. Furthermore, for different light intensities, the display panel can flexibly and linearly adjust the transmittance of the light adjustment units 21 between 10% and 90% to match the corresponding light intensity, further improving the display effect and user experience.

[0114] The embodiments of this application do not limit the material composition of the ion conditioning layer 26. In some embodiments, the material in the ion conditioning layer 26 includes nickel oxide. Similarly, the embodiments of this application do not limit the thickness of the ion conditioning layer 26. Optionally, the thickness of the ion conditioning layer 26 is H5, where H5 satisfies: 20nm ≤ H5 ≤ 30nm.

[0115] In some embodiments, such as Figure 2 As shown, the conductivity control unit 40 includes a first electrode 41 located on the side of the light adjustment unit 21 facing the substrate 10, and a second electrode 42 located on the side of the light adjustment unit 21 away from the substrate 10. There are multiple first electrodes 41, which are spaced apart from each other and corresponding to different light adjustment units 21.

[0116] The conductivity control unit 40 includes a first electrode 41 and a second electrode 42. The first electrode 41 and the second electrode 42 are spaced apart in the thickness direction Z and can form an electric field structure. The light adjustment unit 21 is located between the first electrode 41 and the second electrode 42. When the first electrode 41 and the second electrode 42 generate an electric field structure, the electric field structure can pass through the light adjustment unit 21 to adjust the transmittance of the light adjustment unit 21.

[0117] The embodiments of this application do not limit the material composition of the first electrode 41 and the second electrode 42. Optionally, the transmittance of the second electrode 42 is not less than 90% to reduce the adverse effect of the presence of the second electrode 42 on the transmittance of the display panel. Further optionally, the material in the second electrode 42 includes at least one of indium tin oxide and aluminum-doped zinc oxide, and the material in the first electrode 41 includes at least one of indium tin oxide and silver nanowires.

[0118] The thickness of the first electrode 41 and the second electrode 42 is not limited in this embodiment. Optionally, the thickness of the first electrode 41 is H6, where H6 satisfies: 80nm ≤ H6 ≤ 100nm. The thickness of the second electrode 42 is H7, where H7 satisfies: 80nm ≤ H7 ≤ 100nm.

[0119] In this embodiment, in order to meet the independent control needs of multiple light adjustment units 21, multiple first electrodes 41 are provided in the display panel and are spaced apart from each other. The multiple first electrodes 41 are respectively corresponding to the multiple light adjustment units 21. In this way, by applying different voltage signals to different first electrodes 41, different light adjustment units 21 can be located in electric field structures of different intensities, thereby realizing the transmittance difference of different light adjustment units 21 and realizing the zoned display of the transparency of the display panel, which has strong practicality and flexibility.

[0120] It should be noted that the present application embodiment does not limit the relationship between the second electrodes 42 in the multiple light adjustment units 21. For example, the second electrodes 42 in different light adjustment units 21 can be arranged at intervals, or the second electrodes 42 in different light adjustment units 21 can be connected and arranged as one unit.

[0121] In some embodiments, the plurality of second electrodes 42 of the plurality of light adjustment units 21 are integrally connected.

[0122] In this embodiment, by connecting multiple second electrodes 42 together, the fabrication difficulty of the second electrodes 42 is reduced. Furthermore, each of the multiple second electrodes 42 only requires a single voltage signal input, thereby reducing the complexity of the wiring layout within the display panel. Optionally, the multiple second electrodes 42 are connected in a mesh structure.

[0123] In some embodiments, the display panel further includes a cathode layer disposed on the side of the light-emitting functional layer 30 away from the substrate 10, the cathode layer including a cathode structure 52, the cathode structure 52 being connected to the second electrode 42 with the same signal.

[0124] In this embodiment, the orthogonal projection of the cathode structure 52 on the substrate typically covers the orthogonal projection of multiple light-emitting structures 31 on the substrate, and the cathode structure 52 typically receives a constant voltage signal. Based on this, this embodiment connects the cathode structure 52 and the second electrode 42 to the same signal, so that the second electrode 42 also receives a constant voltage signal, thereby reducing the types of signals inside the display panel and having strong practicality.

[0125] In some embodiments, please refer to Figure 4 The display panel also includes multiple control circuits 61, each electrically connected to a different first electrode 41. At least some of the control circuits 61 are independently configured. Figure 4 The control circuit 61 is simply shown in a solid box, and the pixel circuit 62 is simply shown in a dashed box.

[0126] The control circuit 61 is a circuit structure used to control the transmittance of the light adjustment section 21. Specifically, the control circuit 61 is electrically connected to the first electrode 41. The control circuit 61 can control the magnitude of the signal voltage output to the first electrode 41, thereby realizing the control and adjustment of the electric field structure corresponding to the conductive control section 40. Based on this, the control circuit 61 changes the magnitude of the signal voltage output to the first electrode 41, thereby changing the intensity of the electric field structure and adjusting the transmittance of the light adjustment section 21.

[0127] Since multiple first electrodes 41 and light adjustment units 21 are provided, the number of control circuits 61 in this embodiment is also set to multiple. The multiple control circuits 61 are electrically connected to different first electrodes 41 respectively. In this way, at the same time, different first electrodes 41 can receive the same signal voltage or different signal voltages, so that the electric field structure corresponding to different light adjustment units 21 can have the same intensity or different intensity, thereby realizing the zoned control of the transparency of the display panel.

[0128] It should be noted that a single control circuit 61 may be electrically connected to only one first electrode 41, or a single control circuit 61 may be electrically connected to multiple first electrodes 41 at the same time. This application embodiment does not limit this, as long as multiple control circuits 61 can be electrically connected to different first electrodes 41 respectively to achieve zoned control of the transparency of the display panel.

[0129] In some embodiments, please refer to Figure 5 The control circuit 61 includes a transformer module 611. The transformer module 611 is a module that converts the input voltage into another output voltage. The main function of the transformer module 611 is to increase or decrease the output voltage.

[0130] In this embodiment, a transformer module 611 is provided within the control circuit 61. This transformer module 611 changes the output voltage, transforming the input voltage to the voltage required by the first electrode 41, thus meeting the operational needs of the conductivity control unit 40. Furthermore, for different light adjustment units 21, the transformer module 611 within the corresponding control circuit 61 outputs different signal voltages, resulting in different electric field structures corresponding to different light adjustment units 21. This satisfies the need for varying transparency in different areas of the display panel, achieving zoned control of the display panel's transparency.

[0131] In some embodiments, the control circuit 61 further includes a voltage detection module 612, which is electrically connected to the output terminal and the trigger terminal of the transformer module 611. The voltage detection module 612 is used to detect the voltage value at the output terminal of the transformer module 611 and feed the detected voltage back to the trigger terminal of the transformer module 611. The transformer module 611 controls its output terminal to continue outputting or turn off the output voltage according to the detected voltage.

[0132] In this embodiment, by including a voltage detection module 612 within the control circuit 61, the output voltage of the transformer module 611 can be monitored in real time, and the detected voltage can be promptly fed back to the trigger terminal of the transformer module 611. This allows the transformer module 611 to be controlled to continue outputting or to turn off the output voltage, thereby ensuring the normal operation of the control circuit 61 and improving its operational reliability. Optionally, the transformer module 611 includes at least one thin-film transistor, and the trigger terminal of the transformer module 611 serves as the control terminal of the thin-film transistor.

[0133] In some embodiments, the display panel includes a first display area A3 and a second display area A4 arranged side-by-side in a first direction X. Both the first display area A3 and the second display area A4 include a plurality of first areas A1 and a plurality of second areas A2. The input terminals of the transformer modules 611 of the plurality of control circuits 61 located in the first display area A3 are electrically connected to a first signal line, and the input terminals of the transformer modules 611 of the plurality of control circuits 61 located in the second display area A4 are electrically connected to a second signal line. The first signal line and the second signal line are insulated from each other.

[0134] The first display area A3 and the second display area A4 are two different display areas of the display panel. The first display area A3 and the second display area A4 may have the same area and shape, or they may have different areas and shapes. This application embodiment does not limit this.

[0135] The first display area A3 includes multiple first areas A1 and multiple second areas A2, and the second display area A4 also includes multiple first areas A1 and multiple second areas A2. Based on this, in this embodiment, the input terminals of the transformer modules 611 in the multiple control circuits 61 located in the first display area A3 are all connected to a first signal line, and the input terminals of the transformer modules 611 in the multiple control circuits 61 located in the second display area A4 are all connected to a second signal line. That is, the multiple transformer modules 611 in the first display area A3 and the multiple transformer modules 611 in the second display area A4 are provided with input voltage by the same signal line. Compared to a scheme where the input terminals of each transformer module 611 are connected to different signals, this design helps reduce the number of internal traces in the display panel and simplifies the wiring layout. The first signal line and the second signal line can be used to transmit the same signal voltage or different signal voltages; this embodiment does not impose any limitations on this.

[0136] In some embodiments, the display panel further includes an anode layer disposed on the side of the light-emitting functional layer 30 facing the substrate 10 and a plurality of pixel circuits 62. The anode layer includes a plurality of anode structures 51, which are correspondingly disposed with the plurality of light-emitting structures 31. The plurality of pixel circuits 62 are electrically connected to different anode structures 51. The display panel also includes a third signal line disposed on the substrate 10, and the input terminals of the pixel circuits 62 and the control circuit 61 are both electrically connected to the third signal line.

[0137] The third signal line is a wiring structure used to transmit a specific signal, which needs to be input into the pixel circuit 62 to meet the operational requirements of the pixel circuit 62. Furthermore, in this embodiment, the input terminal of the control circuit 61 is electrically connected to the third signal line. This allows the specific signal within the third signal line to be transmitted not only to the pixel circuit 62 but also input into the control circuit 61 as an input voltage, thus meeting the operational requirements of the control circuit 61. This design helps reduce the number of traces within the display panel, simplifies the wiring layout, and helps reduce the overall thickness of the display panel by approximately 0.4mm, achieving a thinner and lighter design.

[0138] In some embodiments, please refer to Figure 6 The display panel also includes a selection module 63, and the third signal line is electrically connected to the pixel circuit 62 and the control circuit 61 through the selection module 63.

[0139] The selection module 63 can have at least two output terminals, which are electrically connected to the pixel circuit 62 and the control circuit 61 respectively. The third signal line is electrically connected to the input terminal of the selection module. Specific signals in the third signal line can be selected by the selection module 63 to enter the pixel circuit 62 or the control circuit 61, thereby reducing the interference between the pixel circuit 62 and the control circuit 61 and improving the reliability of the operation of the pixel circuit 62 and the control circuit 61 respectively.

[0140] The specific type of signal transmitted by the third signal line is not limited in this application embodiment. Optionally, the third signal line is used to transmit at least one of a data signal and a reset signal. Taking the third signal line as an example of transmitting a data signal, unlike the data signal in related technologies, the data signal transmitted by the third signal line in this application embodiment can be a constant voltage signal. The operation of the pixel circuit 62 typically includes a reset stage, a data writing stage, and a light emission stage. During the data writing stage, the selection module 63 controls the data signal to be written into the pixel circuit 62. During the light emission stage, the selection module 63 controls the data signal to be isolated from the pixel circuit 62 and controls the data signal to be written into the driving circuit to realize the control of the light adjustment unit 21. In other words, during the data writing stage, the data signal is only written into the pixel circuit 62, and during the light emission stage, the data signal is only written into the control circuit 61. Since the duration of the data writing stage is often less than the switching rate of the light adjustment unit 21 between different states, even if the data signal is not written into the control circuit 61 during the data writing stage, it will not cause a change in the transmittance of the light adjustment unit 21.

[0141] In some embodiments, please refer to Figure 2 and Figure 7 The display panel also includes an anode layer disposed on the side of the light-emitting functional layer 30 facing the substrate 10. The anode layer includes a plurality of anode structures 51, which are correspondingly disposed with the plurality of light-emitting structures 31. The light-adjusting part 21 is located on the side of the anode structure 51 facing the substrate 10, or the light-adjusting part 21 and the anode structure 51 are located at the same height in the thickness direction Z of the substrate 10.

[0142] In this embodiment, to enable the light-adjusting section 21 to be located on the side of the light-emitting functional layer 30 facing the substrate 10, the positional relationship between the light-adjusting section 21 and the anode structure 51 is adjusted. The light-adjusting section 21 is positioned on the side of the anode structure 51 facing the substrate 10, or the light-adjusting section 21 and the anode structure 51 are at the same height in the thickness direction Z of the substrate 10. This reduces the impact of the light-adjusting section 21 on the light emission of the light-emitting structure 31. Simultaneously, under this design, the two electrode structures of the conductivity control section 40 can also be located on the side of the light-emitting functional layer 30 facing the substrate 10, thereby reducing the difficulty of connecting the two electrode structures to the corresponding signal traces.

[0143] In some embodiments, please refer to Figure 8 The display panel also includes a pixel definition layer 80 disposed on one side of the substrate 10. The pixel definition layer 80 includes a pixel defining portion 81 and a plurality of pixel openings 82 and light-transmitting openings 83 formed by the pixel defining portion 81. The plurality of pixel openings 82 and the plurality of light-transmitting openings 83 are arranged alternately. The light-emitting structure 31 and the anode structure 51 are both disposed corresponding to the pixel openings 82, and the light-adjusting portion 21 is disposed corresponding to the light-transmitting openings 83.

[0144] In this embodiment, the pixel opening 82 in the pixel definition layer 80 is an opening structure used to define the light-emitting structure 31. In addition to the pixel opening 82, the pixel definition layer 80 also encloses and forms a plurality of light-transmitting openings 83. The pixel opening 82 is located in the first region A1, and the light-transmitting openings 83 are located in the second region A2. The plurality of pixel openings 82 and the plurality of light-transmitting openings 83 are arranged alternately. Furthermore, the light-emitting structure 31 and the anode structure 51 are both arranged corresponding to the pixel opening 82, and the light adjustment part 21 is arranged corresponding to the light-transmitting opening 83. In this way, the light-transmitting opening 83 helps to further improve the transmittance of the display panel in the second region A2, thereby improving the transparent display effect.

[0145] In other embodiments, such as Figure 2 As shown, the display panel also includes a pixel definition layer 80 disposed on one side of the substrate 10. The pixel definition layer 80 includes a pixel limiting portion 81 and a plurality of pixel openings 82 formed by the pixel limiting portion 81. The light-emitting structure 31 and the anode structure 51 are both disposed corresponding to the pixel openings 82. The pixel limiting portion 81 is disposed covering the light adjustment portion 21. The pixel definition layer 80 includes a light-transmitting material.

[0146] In this embodiment, the pixel definition layer 80 only has pixel openings 82 and no light-transmitting openings 83. Based on this, the pixel limiting part 81 can cover the light adjustment part 21, thereby achieving the protection effect of the light adjustment part 21 and the conductive control part 40. At the same time, it can also separate the common film layer such as the hole transport layer (not shown in the figure) in the light-emitting functional layer 30 from the conductive control part 40, thereby improving the operational reliability of the display panel.

[0147] In this embodiment, multiple adjacent light-emitting structures 31 together form a pixel unit 32, and the orthographic projection of the light-adjusting part 21 on the substrate 10 is located between the orthographic projections of adjacent pixel units 32 on the substrate 10.

[0148] Pixel unit 32 is the smallest repeating unit composed of multiple light-emitting structures 31. The arrangement of multiple light-emitting structures 31 in a single pixel unit 32 is not limited in this application embodiment. Multiple light-emitting structures 31 in a single pixel unit 32 can be arranged side by side in a single direction, or they can be arranged side by side in different directions.

[0149] In this embodiment, the light adjustment unit 21 is not located in the area between different light-emitting structures 31 in a single pixel unit 32, but is located between adjacent pixel units 32. This makes the layout of multiple light-emitting structures 31 in a single pixel unit 32 more compact, thereby improving display accuracy and enhancing the user's viewing experience.

[0150] Optionally, a plurality of pixel units are arranged in an array along a first direction X and a second direction Y, both of which are parallel to the plane containing the substrate 10 and intersect each other. Specifically, in the first direction X, the light-adjusting unit 21 is located between adjacent pixel units, and / or, in the second direction Y, the light-adjusting unit 21 is located between adjacent pixel units.

[0151] In this embodiment, the light adjustment unit 21 can be located between adjacent pixel units 32 along the first direction X, so that the distance between adjacent different pixel units 32 in the first direction X remains consistent, thereby improving the display uniformity of the display panel in the first direction X. Alternatively, the light adjustment unit 21 can be located between adjacent pixel units 32 along the second direction Y, so that the distance between adjacent different pixel units 32 in the second direction Y remains consistent, thereby improving the display uniformity of the display panel in the second direction Y. Optionally, the light adjustment unit 21 is located between adjacent pixel units 32 in the first direction X, and also between adjacent pixel units 32 in the second direction Y.

[0152] In some embodiments, the display panel further includes an encapsulation functional layer disposed on the side of the light-emitting functional layer 30 opposite to the substrate 10, wherein the orthographic projection of the encapsulation functional layer on the substrate 10 covers the orthographic projection of the plurality of light-emitting structures 31 and the plurality of light-adjusting parts 21 on the substrate 10.

[0153] In this embodiment, the encapsulation functional layer, in addition to covering the light-emitting structure 31 to provide encapsulation and protection for it, can also cover the light-adjusting part 21 to provide encapsulation and protection for it, thereby further improving the reliability of the display panel. Optionally, the encapsulation functional layer includes a first inorganic layer, a second inorganic layer, and an organic encapsulation layer located between them, all stacked together.

[0154] Secondly, please refer to Figure 9 This application provides a display device, which includes the display panel in any of the foregoing embodiments.

[0155] It should be noted that the display device provided in this application embodiment may have the beneficial effects of the display panel in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the display panel. This application embodiment will not repeat the description.

[0156] In some embodiments, please refer to Figure 10 The display device also includes a photosensitive element 92 and an integrated circuit 91. The display panel also includes multiple control circuits 61, which control different conductive control units 40 respectively. Both the control circuits 61 and the photosensitive element 92 are electrically connected to the integrated circuit 91.

[0157] The photosensitive element 92 can sense ambient light and transmit the corresponding sensing information to the integrated circuit 91. The integrated circuit 91 can process the sensing information, determine the transmittance requirements of the display device in different areas, and then transmit the corresponding control signals to multiple control circuits 61. The multiple control circuits 61 control different conductive control units 40 respectively, thereby controlling different light adjustment units 21 and realizing zoned control of the display device's transparency. This design enables adaptive light control of the display device, which can be applied to usage scenarios such as automotive displays and museum display case glass. It automatically optimizes the display effect according to the direction and intensity of external light. For example, under strong light, at least some of the light adjustment units 21 can be adjusted to a light-blocking state to improve the display contrast.

[0158] Furthermore, for various application scenarios such as automotive displays and museum display case glass, the integrated circuit 91 and the photosensitive element 92 do not need to be placed in the display panel. Therefore, in some embodiments, the photosensitive element 92 is spaced apart from the display panel. Similarly, in some embodiments, the integrated circuit 91 and the photosensitive element 92 are spaced apart, which helps to reduce the space occupied by at least one of the photosensitive element 92 and the integrated circuit 91 on the display panel, thereby reducing the overall size of the display panel and providing greater flexibility.

[0159] In some embodiments, the display panel includes a conductive section 70, which includes a main connecting section 71 and a plurality of branch connecting sections 72 connected in parallel to the main connecting section 71. The main connecting section 71 is electrically connected to an integrated circuit 91, and the branch connecting sections 72 are electrically connected to a control circuit 61.

[0160] The conductive section 70 is a wiring structure in the display panel that enables electrical connection between the integrated circuit 91 and the control circuit 61. The conductive section 70 includes a main connection segment 71 and multiple branch connection segments 72. The multiple branch connection segments 72 are connected in parallel to the main connection segment 71. The main connection segment 71 is electrically connected to the integrated circuit 91, and the branch connection segments 72 are electrically connected to the control circuit 61. In this way, multiple control circuits 61 can be simultaneously electrically connected to the integrated circuit 91 through the same conductive section 70. For example, multiple control circuits 61 in the first display area A3 can be simultaneously electrically connected to the integrated circuit 91 through the same conductive section 70, and multiple control circuits 61 in the second display area A4 can be simultaneously electrically connected to the integrated circuit 91 through the same conductive section 70. This helps reduce the number of conductive sections 70 in the display panel, reduces the difficulty of wiring layout, and facilitates thinner and lighter designs.

[0161] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0162] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

Claims

1. A display panel, characterized in that, The display panel includes multiple first areas and multiple second areas, which are arranged alternately. The display panel also includes: Substrate; A light conditioning layer is disposed on one side of the substrate. The light conditioning layer includes a plurality of light conditioning portions disposed in a plurality of second regions, and the plurality of light conditioning portions are spaced apart from each other. A light-emitting functional layer is disposed on the side of the light-adjusting part away from the substrate, and the light-emitting functional layer includes a plurality of light-emitting structures disposed in a plurality of first regions; A conductive control unit is located on the same side of the substrate as the light-modulating layer. The conductive control unit is configured to generate an electric field passing through the light-modulating unit to change the transmittance of the light-modulating unit to light. The conductive control unit is located outside the projection of the light-emitting structure onto the substrate, and multiple conductive control units are correspondingly arranged with multiple light-adjusting units to independently adjust the transmittance of different light-adjusting units.

2. The display panel according to claim 1, characterized in that, The light-modifying layer includes an electrochromic layer, and the light-modifying part includes an electrochromic part located within the electrochromic layer, with a plurality of electrochromic parts spaced apart. The conductive control unit is used to adjust the color of the electrochromic unit; Preferably, the material in the electrochromic layer includes tungsten trioxide; Preferably, the light-modulating layer further includes an electrolyte layer and an ion storage layer stacked with the electrochromic layer, and the light-modulating part includes an electrolyte part located in the electrolyte layer and an ion storage part located in the ion storage layer, with a plurality of ion storage parts and a plurality of electrolyte parts spaced apart; Preferably, the material in the ion storage layer includes vanadium pentoxide.

3. The display panel according to claim 2, characterized in that, The light-modulating layer further includes a composite material layer stacked with the electrochromic layer, the composite material layer comprising multiple alternating layers of different materials; The light-adjusting unit includes a composite material part located within the composite material layer, and multiple composite material parts are spaced apart. Preferably, the composite material layer includes a first material layer and a second material layer, wherein the material in the first material layer includes tungsten trioxide and the material in the second material layer includes vanadium pentoxide; Preferably, the light-modulating layer further includes an ion-modulating layer located between the composite material layer and the electrochromic layer, and the light-modulating part includes an ion-modulating part located within the ion-modulating layer, with a plurality of ion-modulating parts spaced apart. Preferably, the material in the ion conditioning layer includes nickel oxide.

4. The display panel according to claim 1, characterized in that, The conductivity control unit includes a first electrode located on the side of the light adjustment unit facing the substrate, and a second electrode located on the side of the light adjustment unit away from the substrate; The number of first electrodes is multiple, and the multiple first electrodes are spaced apart from each other and are arranged corresponding to different light adjustment units; Preferably, the plurality of second electrodes of the plurality of light-adjusting units are connected and integrally disposed; Preferably, the plurality of second electrodes are connected in a mesh structure; Preferably, the display panel further includes a cathode layer disposed on the side of the light-emitting functional layer opposite to the substrate, the cathode layer including a cathode structure, the cathode structure being connected to the same signal as the second electrode.

5. The display panel according to claim 4, characterized in that, It also includes multiple control circuits, each of which is electrically connected to a different first electrode; At least some of the control circuits are set up independently of each other; Preferably, the control circuit includes a transformer module; Preferably, the control circuit further includes a voltage detection module, which is electrically connected to the output terminal and the trigger terminal of the transformer module. The voltage detection module is used to detect the voltage value at the output terminal of the transformer module and feed the detected voltage back to the trigger terminal of the transformer module. The transformer module controls its output terminal to continue outputting or turn off the output voltage according to the detected voltage. Preferably, the display panel includes a first display area and a second display area arranged side by side in a first direction, and both the first display area and the second display area include a plurality of first areas and a plurality of second areas; The input terminals of the transformer modules of the multiple control circuits located in the first display area are all electrically connected to the first signal line, and the input terminals of the transformer modules of the multiple control circuits located in the second display area are all electrically connected to the second signal line. The first signal line and the second signal line are insulated from each other.

6. The display panel according to claim 4, characterized in that, It also includes an anode layer disposed on the side of the light-emitting functional layer facing the substrate and a plurality of pixel circuits. The anode layer includes a plurality of anode structures, and the plurality of anode structures are disposed corresponding to a plurality of light-emitting structures. The plurality of pixel circuits are electrically connected to different anode structures respectively. The display panel further includes a third signal line disposed on the substrate, and the input terminal of the pixel circuit and the input terminal of the control circuit are both electrically connected to the third signal line; Preferably, the display panel further includes a selection module, and the third signal line is electrically connected to the pixel circuit and the control circuit through the selection module; Preferably, the third signal line is used to transmit at least one of a data signal and a reset signal.

7. The display panel according to claim 1, characterized in that, It also includes an anode layer disposed on the side of the light-emitting functional layer facing the substrate, the anode layer including a plurality of anode structures, the plurality of anode structures being disposed corresponding to a plurality of light-emitting structures; Wherein, the light adjustment part is located on the side of the anode structure facing the substrate, or the light adjustment part and the anode structure are at the same height in the thickness direction of the substrate; Preferably, the display panel further includes a pixel definition layer disposed on one side of the substrate. The pixel definition layer includes a pixel defining portion and a plurality of pixel openings and light-transmitting openings formed by the pixel defining portion. The plurality of pixel openings and the plurality of light-transmitting openings are arranged alternately. The light-emitting structure and the anode structure are both arranged corresponding to the pixel opening, and the light-adjusting part is arranged corresponding to the light-transmitting opening; Preferably, the display panel further includes a pixel definition layer disposed on one side of the substrate, the pixel definition layer including a pixel defining portion and a plurality of pixel openings formed by the pixel defining portion; Both the light-emitting structure and the anode structure are configured to correspond to the pixel opening, the pixel defining portion covers the light-adjusting portion, and the pixel defining layer includes a light-transmitting material.

8. The display panel according to claim 1, characterized in that, Adjacent light-emitting structures together form a pixel unit, and the orthographic projection of the light-adjusting part on the substrate is located between the orthographic projections of adjacent pixel units on the substrate; Preferably, a plurality of the pixel units are arranged in an array in a first direction and a second direction, wherein the first direction and the second direction are both parallel to the plane of the substrate and intersect each other; Wherein, in the first direction, the light adjustment part is located between adjacent pixel units, and / or, in the second direction, the light adjustment part is located between adjacent pixel units; Preferably, the display panel further includes an encapsulation functional layer disposed on the side of the light-emitting functional layer opposite to the substrate, wherein the orthographic projection of the encapsulation functional layer on the substrate covers the orthographic projection of the plurality of light-emitting structures and the plurality of light-adjusting parts on the substrate.

9. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 8.

10. The display device according to claim 9, characterized in that, It also includes a photosensitive element and an integrated circuit, and the display panel also includes multiple control circuits, each of which controls a different conductive control unit; The control circuit and the photosensitive element are both electrically connected to the integrated circuit; Preferably, the photosensitive element is disposed at a distance from the display panel; Preferably, the integrated circuit and the photosensitive element are spaced apart; Preferably, the display panel includes a conductive section, which includes a main connecting section and a plurality of branch connecting sections connected in parallel to the main connecting section. The main connecting section is electrically connected to the integrated circuit, and the branch connecting sections are electrically connected to the control circuit.

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