A liquid crystal-quantum dot composite material device based on a honeycomb confined structure and application thereof

Abstract

This invention discloses a liquid crystal-quantum dot composite device based on a honeycomb confinement structure and its applications. By constructing a highly ordered honeycomb microcavity polymer template and injecting an orientation-responsive liquid crystal-quantum dot composite system into it, an anisotropic light-controlled structure in a spatially confined state is formed. This structure can then be integrally transferred and integrated onto the surface of a MicroLED. Under the action of an applied electric or light field, liquid crystal molecules reversibly switch from a bipolar configuration to a radial configuration within the honeycomb cavity, thereby guiding the dynamic control of the quantum dot emission direction. Through the liquid crystal-induced orientation effect, the redistribution of the quantum dot emission angle and the improvement of light coupling efficiency can be achieved, enhancing brightness output within the target viewing angle and realizing beam modulation under a specific polarization direction. The composite structure formed by this device possesses multiple functions such as light field divergence control, brightness enhancement, color conversion, and polarization response. It can achieve integrated application of "color conversion + light control + intelligent response" in micro-display systems, suitable for high-performance scenarios such as AR / VR micro-displays, integrated optical components, and flexible wearable optoelectronic devices.

Description

Technical Field

[0001] This invention belongs to the field of semiconductor technology, specifically relating to the preparation, light field modulation, and application of a photoluminescent quantum dot liquid crystal composite material. In particular, by constructing a honeycomb confinement structure, the spatially ordered orientation of quantum dots and liquid crystal composite materials in a microcavity is achieved, and the liquid crystal configuration is reversibly modulated under the action of an external electric field and / or light field. This enables dynamic adjustment of the quantum dot emission angle, enhanced optical coupling, and improved viewing angle brightness, and is applicable to fields such as micro-displays, polarization light modulation, and intelligent optoelectronic devices. Background Technology

[0002] As information displays continue to evolve towards higher resolution, miniaturization, and intelligence, achieving efficient and controllable optical output within limited space has become a crucial development direction for display technology. Liquid crystal materials, with their excellent electro-optical response characteristics, tunable orientation configurations, and anisotropic light modulation capabilities, have long held a core position in display control systems. The orientation state of liquid crystal molecules directly affects their refractive index, thus enabling precise control of the transmission path and polarization direction under the influence of electric or optical fields. In recent years, the composite application of liquid crystals with quantum dots and other light-emitting color conversion materials has been continuously expanding, injecting multi-dimensional functional enhancements into novel display solutions such as Mini / Micro-LED, particularly showing promising prospects in achieving angle control, polarization response, and color gamut expansion.

[0003] However, the synergistic integration of liquid crystals and quantum dots still faces many challenges in the actual device fabrication process. On the one hand, the differences in their physical structure and chemical interface make it difficult for them to naturally form a stable coexistence state in a microscale environment, especially in the micrometer-scale space where high uniformity and high orientation consistency are required. On the other hand, the alignment behavior of liquid crystals is highly sensitive to external boundaries and external field conditions, and existing technologies struggle to construct liquid crystal alignment regions with controllable orientation and regular structure in micro-pixel arrays, limiting the effective controllability of the liquid crystal itself over the light field. In existing technologies, as described in patent number CN222636441U, a quantum dot cholesterol liquid crystal display device can excite other colors of light after absorbing blue light. Another example is patent number CN16184713A, which describes a display screen with pixelated photoluminescent quantum dot color filters. The pixelated color filters are printed on a substrate and used in conjunction with a liquid crystal display screen to increase light efficiency and improve the brightness of modern liquid crystal displays. These methods all involve whole-area control and cannot achieve pixel-level adjustment. They have limited ability to control the light field, which not only fails to guarantee uniform distribution on miniature light sources but also greatly limits the application of the light source.

[0004] This invention proposes a novel strategy that uses a honeycomb polymer confinement structure as a template to inject a liquid crystal-quantum dot composite system into it, forming a responsive light-emitting unit that combines spatial confinement with a flexible interface within the honeycomb cavity. By adjusting the configuration of the liquid crystal molecules through an external electric or optical field, the reversible switching of the quantum dot emission direction can be guided. Unlike traditional fixed photoresists, this composite system does not require curing and can continuously respond under an external field, exhibiting dynamic controllability and enhanced directionality. Simultaneously, the device can be integrally transferred and integrated onto the surface of a Mini / Micro-LED chip, further improving optical coupling efficiency and brightness output within the viewing angle. This honeycomb structure not only provides a highly ordered spatial confinement platform for the liquid crystal-quantum dot composite material but also induces liquid crystal orientation consistency through geometric constraints, enabling controllable focusing and divergence of the quantum dot emission beam. The overall solution combines standardized structural design, high optical responsiveness, and device-level integration operability, significantly improving the overall performance of micro-display devices. Summary of the Invention

[0005] The present invention provides a liquid crystal-quantum dot composite material device based on a honeycomb confinement structure, comprising: a polymer confinement film having ordered honeycomb microcavities, and a liquid crystal-quantum dot composite system filled within the ordered honeycomb microcavities; the liquid crystal-quantum dot composite system comprises liquid crystal material and quantum dots; the polymer confinement film can be prepared by a breathing pattern method to form a highly ordered microcavity array; under the action of an applied electric field and / or light field, the liquid crystal molecules undergo orientation configuration changes, thereby guiding the quantum dot emission path to be reversibly controlled, thereby realizing the adjustment of the emission angle, brightness distribution and polarization state.

[0006] Furthermore, the liquid crystal-quantum dot composite system remains in a liquid dispersion state, possesses external field responsiveness and fluidity, and is not solidified or shaped, thus ensuring its reconfigurability and real-time light field control capability under different working conditions.

[0007] Furthermore, the external field includes an external electric field and / or an external light field, to which the liquid crystal material generates a configurational response, enabling reversible switching from a bipolar configuration to a radial configuration, and in conjunction with the control of the luminescence directionality of the quantum dots.

[0008] Furthermore, the quantum dots include at least one of binary quantum dots, ternary quantum dots, and quaternary quantum dots, and are preferably high photoluminescence efficiency nanocrystals with emission peaks in the blue, green, and red light regions.

[0009] Furthermore, the liquid crystal material includes a photoresponsive structure and / or polar orientation groups, preferably including an azobenzene photoresponsive structure and a cyano polar orientation group, to enhance its orientation controllability and interface anchoring capability.

[0010] Furthermore, the liquid crystal-quantum dot composite system can be dispersed in a liquid crystal medium or other inert polymer medium, and the entire system does not require the addition of photosensitive polymers or curing agents, thereby maintaining its dynamic control capability.

[0011] Furthermore, the device may also include Micro-LED, Mini-LED or other light-emitting chips, and the polymer confinement film is transferred and disposed on the light-emitting surface of the light-emitting chip to form a light-emitting enhancement layer or viewing angle control layer, so as to improve the light coupling efficiency, directional emission performance and pixel-level light field control capability.

[0012] Another aspect of the present invention provides the application of the above-mentioned liquid crystal-quantum dot composite material device, which can be used in liquid crystal quantum dot optoelectronic devices, and is particularly suitable for directional controllable light emission applications such as micro polarization displays, AR / VR near-eye displays, flexible light modulation devices, intelligent light control terminals, and light field modulation of light-emitting chips.

[0013] The present invention has the following beneficial effects:

[0014] This invention proposes a liquid crystal-quantum dot composite material based on a honeycomb confinement structure. By constructing a spatially ordered, non-cured dynamic light-emitting system within a microcavity structure, the emission direction of quantum dots is controlled by liquid crystal orientation, thereby achieving adjustable light field divergence angle, enhanced brightness, and improved polarization selectivity. The composite particles are uniformly, orderly, and oriented in the honeycomb microcavity, forming a high-pixel-density dynamic light-emitting layer on the surface of micro-LEDs. This material simultaneously possesses functions such as color conversion, high-brightness emission, and response modulation, making it widely applicable in micro-nano lens arrays, tunable light field emission structures, and micro-deflection light source devices in micro-light sources, providing technical support for next-generation integrated display and intelligent light control systems. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a honeycomb confined liquid crystal-quantum dot device provided in some embodiments of this application.

[0016] Figure 2 This is a schematic diagram of the steps involved in the creation of a honeycomb-confined liquid crystal-quantum dot device according to some embodiments of this application.

[0017] Figure 3 These are some embodiments of the honeycomb structure design and divergence intensity simulation diagrams provided in this application.

[0018] Figure 4 These are optical images of ordered pixelated confined structures provided in some embodiments of this application.

[0019] Figure 5 This is a schematic diagram of the liquid crystal-quantum dot device structure provided in some embodiments of this application.

[0020] Figure 6 These are SEM images of liquid crystal-quantum dot devices provided in some embodiments of this application.

[0021] Figure 7 These are some diagrams from this application illustrating the manipulation of liquid crystal-quantum dots by applied light / electric fields.

[0022] Figure 8 This is a simulation diagram of how the distribution of liquid crystals and quantum dots modulates the light field, as described in this application.

[0023] Figure 9 This application describes the divergence angle spectrum of the liquid crystal-quantum dot optical field modulation.

[0024] Figure 10 These are comparative light field effect diagrams of the products provided with and without added liquid crystal quantum dots, representing an example.

[0025] Figure 11 Add optical effect diagrams for liquid crystal-quantum dot products.

[0026] Figure 12 This is a comparison of the spectral enhancement effects of adding and not adding liquid crystal quantum dots in the embodiments. Detailed Implementation

[0027] To more clearly and completely describe the technical solution of the present invention, the present invention will be further described in detail below through specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention. Various changes can be made within the scope of the claims of the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] This invention provides a liquid crystal-quantum dot composite device based on a honeycomb confinement structure and its application. Liquid crystal materials are combined with quantum dots to form orientation-responsive liquid crystal-quantum dot composite particles, which are then injected into a polymer film with a honeycomb confinement structure. Under the influence of an applied electric field and / or optical field, the composite particles achieve spatially ordered orientation within the microcavity. The emission direction of the quantum dots is dynamically controlled by the orientation changes of the liquid crystal molecules, thereby obtaining a composite material system with the ability to control the divergence angle of the optical field.

[0030] To achieve an ordered honeycomb-like confined structure, this invention employs three different construction methods for ordered microporous array structures: physically self-assembled honeycomb membranes, functional polymer composite honeycomb membranes, and block polymer-induced confined structures. The physically self-assembled honeycomb membrane refers to a structure where regular hexagonal pores are spontaneously formed using a breathing pattern method (BF method) under high humidity conditions, utilizing water droplet condensation as a template. This structure is primarily composed of polystyrene (PS) or its derivatives, exhibiting good film-forming properties and tunable pore size. The functional polymer composite honeycomb membrane refers to the introduction of polar or photoresponsive monomers into a basic polymer system, such as fluorinated segments, cyano groups, or azobenzene side chains, to enhance the functionality of the pore walls and their anchoring effect with liquid crystals. Common materials include fluorinated polystyrene and PS-b-PMMA copolymers. The block polymer-induced confinement structure refers to the surface separation of block copolymers (such as PS-b-PEO and PS-b-PCNAz) during the honeycomb template molding and heat treatment process, which enriches functional blocks on the pore walls, thereby obtaining a confinement array with surface functional gradients for interface induction of liquid crystals and distribution control of quantum dots. Specifically, the physically self-assembled honeycomb film has simple formation conditions and is suitable for large-area preparation; the functional polymer composite honeycomb film has interface control capabilities and is suitable for improving the orientation stability of liquid crystal molecules; the block polymer-induced confinement structure has configuration control and multifunctional integration capabilities and is suitable for constructing integrated light-emitting devices with multi-field response functions. All of the above structures can serve as stable confinement platforms for liquid crystal-quantum dot composite systems, enabling composite light field functions such as light emission angle control, polarization selection, and brightness enhancement.

[0031] The quantum dots in this invention can be selected from at least one of binary, ternary, and quaternary quantum dots. Binary quantum dots include CdS, CdSe, PbS, CdTe, PbSe, and Sb₂S₃; ternary quantum dots include CuInS₂, CdSeTe, CuInSe₂, CuInTe₂, CsPbX₃ (X = Cl, Br, or I), and CsMX₃ (M = Sn). 2+ ,Ge 2+ Mg 2+ Ga 2+ , Sr 2+ Or Ba 2+ ), FAPbBr3, MAPbBr3 and CsSnI3. Quaternary quantum dots include Cu2ZnSnS4, CsAgBiX3, CuInGaSe2, CuInGaS2, ZnCdSSe, CuInGaSe, ZnCdTeSe, ZnInGaSe and CuInGaS.

[0032] To achieve uniform distribution of quantum dots in a liquid crystal medium and maintain stable orientation response behavior within a confined structure, this method employs physical blending to introduce quantum dots into a liquid crystal system. Leveraging the anisotropic arrangement and spatial orientation driving ability of liquid crystal molecules, responsive liquid crystal-quantum dot composite particles are constructed. This composite system does not rely on crosslinking or covalent bonding; instead, it achieves spatially stable distribution of quantum dots through the anchoring effect at the liquid crystal interface. Functional molecules with polar or photoresponsive structures (such as azobenzene, cyano side chains, etc.) can be introduced into the liquid crystal material to enhance interfacial interactions with quantum dots and external field response capabilities, promoting configuration induction and orientation control within the honeycomb confined structure.

[0033] The functional anisotropic materials used in this invention mainly include three types of orientation-controlled media with external field response capabilities: photoresponsive, polar structure-driven, and photoelectric synergistic response systems. After these materials are combined with quantum dots in a honeycomb confined structure to form a composite system, they exhibit significant spatial rearrangement behavior under the influence of electric fields, optical fields, or combinations thereof, forming an ordered arrangement with consistent orientation.

[0034] Among them, photoresponsive systems refer to materials that can undergo molecular configuration transformation under irradiation in a specific wavelength band (such as ultraviolet or blue light), preferably containing photoinduced cis-trans isomerization structural units, such as biaryl conjugated small molecules with aromatic azo structures, such as 4-n-octyloxy-4'-fluoroazobenzene and 4-nonoxy-4'-cyanostyrene; polar structure-driven systems are based on high dielectric anisotropy, and molecular directional rearrangement can be driven by applying a low-voltage electric field. Common representatives include benzothiophene biaryl structures (such as 4-hexyloxybenzothiophene-4'-cyanobiphenyl) and their derivatives, which have high orientation response rates; photoelectric synergistic response materials integrate photosensitive units and strongly polar structures, and have multi-field synergistic driving characteristics. Representative molecular structures include side-chain copolyester materials with styrene skeletons (such as ethyl acrylate-styrene block liquid crystals) and fluoromethacrylate polymers containing imine groups.

[0035] In some embodiments provided by this invention, the quantum dot processing method includes the following steps:

[0036] Step 1: In a high-humidity airflow environment, a solution of polystyrene (PS) or its functionalized copolymers is uniformly spin-coated or drop-coated onto a clean substrate. During solvent evaporation, water droplets are induced to self-assemble and deposit on the membrane surface, forming a regularly arranged array of micron-sized water droplets. As the water droplets evaporate, a honeycomb-like pore structure with hexagonal arrangement is formed in the polymer membrane, resulting in a highly ordered confined template.

[0037] Step 2: To enhance the anchoring compatibility between the liquid crystal and the pore walls, a block copolymer (such as PS-b-PCNAz) with liquid crystal affinity groups (such as cyano, azobenzene, etc.) is mixed into the film-forming solution. After the honeycomb structure is formed, annealing is performed to cause the functional polymer blocks to migrate to the surface and accumulate on the inner walls of the pores, forming a high-density orientation-induced interface, which provides a structural basis for the subsequent orderly arrangement of the liquid crystal.

[0038] Step 3: Prepare a liquid crystal composite material system containing quantum dots. Physically blend fluorescent quantum dots with photoresponsive or electroresponsive liquid crystal materials to form composite particles with directional response capabilities. Fill the pores of the honeycomb confinement structure with the composite liquid through drop casting, capillary injection, or low-pressure suction to ensure that each cavity forms an independent and confined liquid crystal-quantum dot structural unit.

[0039] Step 4: After filling, an external electric field and / or light field is applied to the sample to drive the liquid crystal molecules to achieve a reversible transition from a bipolar configuration to a radial configuration within the confined cavity. This redistributes the emission direction of the quantum dots, enabling the control of the emission angle and reconstruction of the light field. This process does not require curing, preserving the reconfigurability and dynamic response capability of the liquid crystal system.

[0040] Step 5: The constructed cellular confined liquid crystal-quantum dot array structure is transferred from the original substrate to the surface of a Micro-LED or Mini-LED chip through mechanical exfoliation or solvent-assisted release, achieving device-level integration. This composite film can serve as a light-enhancing layer or a viewing angle control layer, improving light coupling efficiency, enhancing polarization selectivity, and optimizing the brightness of the micro-display terminal in a specific direction.

[0041] The quantum dot processing method provided by the present invention will be described below with reference to the accompanying drawings and specific embodiments:

[0042] Comparative Example 1

[0043] Step 1: Weigh 0.5g of polystyrene (PS) and 0.05g of block copolymer PS-b-PCNAz and dissolve them in 10ml of dichloromethane. Stir well and filter. Drop-coat the above solution onto a clean glass substrate under 50% relative humidity and place it in a humidified airflow environment (humidity controlled at 65%, temperature at 22°C). During the rapid evaporation of the solvent, water vapor in the air condenses on the solution surface to form a micron-sized water droplet array. After condensation for 30 seconds, the water naturally evaporates, resulting in a regular honeycomb-like microporous membrane structure with a pore size distribution of 3–5μm. Anneal the membrane in a vacuum drying oven at 60°C for 30min to enrich the liquid crystal functional blocks of the PS-b-PCNAz polymer onto the pore wall surface, forming a functional pore wall interface.

[0044] Step 2: Take 0.2 g of CsPbBr3 nanocrystalline quantum dots, disperse them in 10 ml of toluene, add 1.0 ml of mercaptopropionate (dispersing ligand), stir for 30 min, then add 1.0 ml of oleylamine (which has both ligand and adhesion functions), and continue stirring for 20 min. Centrifuge the reaction solution at 8000 rpm for 10 min, discard the supernatant, and collect the precipitate. Redisperse the precipitate in 20 ml of PGMEA, add 0.05 g of liquid crystal functional molecule (4-n-octyl-4'-cyanobiphenyl), and magnetically stir at 30°C for 4 h, followed by sonication for 15 min to form a homogeneous emulsion. Separately, take 2.0 g of acrylate monomer prepolymer, add 1.0 ml of quinoline photoinitiator to 30 ml of PGMEA, and stir for 2 h to form a clear solution. Take 10 ml of the above liquid crystal quantum dot composite solution and mix it into the monomer system. After ultrasonic treatment at 30°C for 10 min, let it stand for 24 h to remove bubbles and obtain a stable and transparent liquid crystal-quantum dot composite photoresist, denoted as solution C.

[0045] Step 3: Place the prepared honeycomb film horizontally, and cover the honeycomb structure surface with 2ml of solution C by drop coating. Then, use capillary action to inject the composite solvent into each honeycomb micropore. The channels around the pixels are cured by photolithography to form pixel periphery curing.

[0046] Step 4: Align the patterned honeycomb film with the Micro-LED chip array area, and use a hot-press transfer method (80℃, 0.3MPa pressure, 5min) to transfer the pixel pattern onto the surface of the Micro-LED chip. The liquid crystal-quantum dot pixel array is firmly adhered above the light-emitting area of ​​the chip. By applying an external electric field or light field, the blue light emitted by the chip is enhanced in direction and converted in color. By applying an electric field of 3V and observing with a polarizing microscope and scanning electron microscope (SEM), the pixel array is well-arranged, the composite particles are evenly distributed in each confined cavity, and the light emission direction is consistent. Actual tests show that the brightness of the device is improved by about 35% at the center viewing angle, and the brightness is maintained at more than 90% even when the viewing angle is extended to ±45°, demonstrating good viewing angle adjustable performance and structural stability.

[0047] Example 1

[0048] The results are basically the same as the comparative example, except that no additional electric field is applied in step 3.

[0049] Example 2

[0050] The results are basically the same as the comparative example, except that in step 3, voltages of 6V and 9V are applied separately.

[0051] The process flow diagrams for Examples 1 and 2 are as follows: Figure 2 As shown.

[0052] like Figure 3 As shown, by designing a honeycomb structure with different pixel sizes, the height of the structure can be increased in a specific direction of the light-emitting pixels. Figure b shows the light field distribution of Example 1, Comparative Example, and Example 2 under the conditions of applying voltages of 0, 3, 6, and 9V, respectively.

[0053] Figure 4 The fabricated honeycomb structure is shown, filled with a liquid crystal-quantum dot solution. The solution distribution is clearly visible in the image, forming fixed pixels.

[0054] Figure 5 This diagram illustrates the structure of a composite device formed by transferring a honeycomb structure onto a Micro-LED. Figure 6 The image shows actual SEM images of the device pixels under comparative conditions, and displays clear pixel images after successful transfer.

[0055] Figure 7 The comparative example and Example 1 are shown, with liquid crystal-quantum dot distributions before and after applying a voltage of 3V. Under the stimulation of voltage, the liquid crystal flips, thus modulating the light field.

[0056] Figure 8 The study demonstrates the effect of liquid crystal flipping on light propagation under voltage regulation, and shows how the divergent Lamborgh light source was converged by the directional trend of the liquid crystal.

[0057] Figure 9 The diagram shows a comparison of the emission angles of the comparative example under voltage regulation and without voltage applied in Example 1. The light beam is compressed to a specific convergence angle by liquid crystal flipping, which is beneficial for light field regulation and lays the foundation for emission at a specific angle.

[0058] Figure 10 The comparison demonstrates the application of the light field of the comparative example under voltage regulation, compared with that of Example 1 without voltage application. When no voltage is applied, the MicroLED light emission has no obvious boundary, causing serious pixel crosstalk. By applying a voltage of 3V to the comparative example, the pixel light emission can be converged, thereby reducing the pixel crosstalk light emission within a certain range.

[0059] Figure 11 The paper presents a comparative optical photograph of the liquid crystal flipping under voltage regulation, showing that the pixel boundaries are clearly visible, demonstrating accurate pixel control.

[0060] Figure 12 The study demonstrates the spectral enhancement effect achieved by controlling liquid crystal-quantum dot pixels, enhancing the light emitted from the front. This light emission is controlled through the waveguide effect of the liquid crystal, providing a possibility for Mini / MicroLED light enhancement.

[0061] Another aspect of the present invention provides a liquid crystal-quantum dot composite material device based on a honeycomb confinement structure and its application, including Mini / MicroLED pixel driving devices.

[0062] Another aspect of the present invention provides an application of the above-described product in liquid crystal quantum dot optoelectronic devices.

[0063] The foregoing has provided a detailed description of the fabrication, optical field modulation, products, and applications of a honeycomb-confined liquid crystal-quantum dot composite material device provided by this invention. Specific examples have been used to illustrate the principles and implementation methods of this invention; the descriptions of these embodiments are merely for the purpose of helping to understand the core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A liquid crystal-quantum dot composite material device based on a honeycomb confinement structure, characterized in that, include: A polymer confinement film with ordered honeycomb microcavities and a liquid crystal-quantum dot composite system filled within the ordered honeycomb microcavities; the liquid crystal-quantum dot composite system includes liquid crystal material and quantum dots, the polymer confinement film is used to spatially confine the liquid crystal-quantum dot composite system, and the liquid crystal material undergoes orientation configuration changes under the action of an applied electric field and / or light field to control the emission angle of the quantum dots and achieve reversible switching.

2. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, The liquid crystal-quantum dot composite system remains in a liquid state within the ordered honeycomb microcavity, and can be dynamically reconstructed and photoresponse regulated according to changes in the external control field, without undergoing photosensitive curing treatment.

3. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, The applied electric field and / or light field are used to enable the orientation of the liquid crystal material to undergo a reversible change from a bipolar configuration to a radial configuration under different field strengths or irradiation conditions, and to control the emission directionality of the quantum dots in conjunction with this.

4. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, The quantum dots include at least one of binary quantum dots, ternary quantum dots, and quaternary quantum dots.

5. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, The liquid crystal material includes a photoresponsive structure and / or polar orientation groups, wherein the photoresponsive structure includes an azobenzene structure and the polar orientation groups include cyano groups, for improving interface anchoring and field response efficiency.

6. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, The ordered honeycomb microcavities have a pore size of 0.1-10 micrometers and are arranged in an ordered manner, which is used to locally confine, stabilize the position and induce the configuration of the liquid crystal-quantum dot composite system.

7. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, The configurational changes of the liquid crystal material are used to compress or expand the divergence angle of the emitted light field from the quantum dot, thereby achieving brightness enhancement at a specific viewing angle and selective control of polarization direction.

8. The liquid crystal-quantum dot composite material device as described in claim 1, characterized in that, It also includes Micro-LED, Mini-LED or other light-emitting chips, wherein the polymer confinement film is transferred and disposed on the light-emitting surface of the light-emitting chip to form a light-emitting enhancement layer or a viewing angle control layer.

9. An application of a liquid crystal-quantum dot composite material device based on a honeycomb confinement structure, characterized in that, The liquid crystal-quantum dot composite material device includes a polymer confinement film with ordered honeycomb microcavities and a liquid crystal-quantum dot composite system filled within the ordered honeycomb microcavities. The liquid crystal material in the liquid crystal-quantum dot composite system can regulate the emission direction of the quantum dots under the action of an applied electric field and / or light field. The application is to use the liquid crystal-quantum dot composite material device for at least one of micro-display, polarization control, intelligent light control, or light field control of light-emitting chips.

10. The application as described in claim 9, characterized in that, The microdisplay includes augmented reality (AR) microdisplays and / or virtual reality (VR) microdisplays, and the light field modulation of the light-emitting chip includes at least one of light coupling efficiency enhancement, directional emission enhancement, light emission divergence angle modulation, and pixel crosstalk suppression.

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