Application of ultrahigh-luminous-efficiency perovskite quantum dot PC material to mini module

Abstract

The invention relates to the technical field of display, and discloses application of an ultrahigh-luminous-efficiency perovskite quantum dot PC material to a mini module, and the application comprises the following steps: S1, synthesizing perovskite quantum dots: preparing the perovskite quantum dots through a thermal injection method in an inert gas environment; s2, anti-quenching treatment: coating the surface of the perovskite quantum dot with an anti-quenching layer, wherein the anti-quenching layer comprises an inorganic oxide shell layer or an organic polymer shell layer; s3, quantum dot dispersion: dispersing the perovskite quantum dots subjected to anti-quenching treatment in an organic solvent; s4, compounding the PC material; s5, carrying out patterning treatment; and S6, curing and forming. The quantum dot dispersion liquid is combined with the PC material, and the good mechanical property, chemical stability and high heat resistance of the PC material are utilized to provide a stable support matrix for the perovskite quantum dots, so that the composite material has the high luminous efficiency luminescence characteristic of the perovskite quantum dots and the practical performance of the PC material; and the dual requirements of the mini module on optical and physical properties of the material are met.

Description

Technical Field

[0001] The present invention relates to the field of display technology, specifically to the application of ultra-high luminous efficiency perovskite quantum dot PC materials to mini modules. Background Art

[0002] With the continuous development of display technology, Mini LED, as a new generation of display technology, has received extensive attention and application in the display field due to its advantages such as high brightness, high contrast, high color gamut, and thin and light. As the core component of Mini LED display, the mini module has higher requirements for its optical performance and material performance. Ultra-high luminous efficiency perovskite quantum dots have unique luminescent properties, which can significantly improve the color purity and luminous efficiency of the display. The PC material, with its good mechanical properties, chemical stability, and processing performance, has become an ideal carrier matrix.

[0003] However, in the current technology, it is difficult for a single material to achieve both good optical performance and stable physical protection performance at the same time, thus affecting the service life and stability of the mini module. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides the application of ultra-high luminous efficiency perovskite quantum dot PC materials to mini modules, and solves the problem that it is difficult for a single material to simultaneously achieve optical performance and physical protection, which affects the service life and stability of the mini module.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: including the following steps: S1. Synthesize perovskite quantum dots: Prepare perovskite quantum dots by thermal injection method in an inert gas environment; S2. Anti-quenching treatment: Coating an anti-quenching layer on the surface of the perovskite quantum dots, and the anti-quenching layer includes an inorganic oxide shell layer or an organic polymer shell layer; S3. Quantum dot dispersion: Disperse the perovskite quantum dots after anti-quenching treatment in an organic solvent, and stir to form a uniform quantum dot dispersion liquid; S4. PC material compounding: Mix the quantum dot dispersion liquid with PC (polycarbonate) material, and through solution blending method, disperse the quantum dots in the PC material matrix; S5. Patterning treatment: Form a preset quantum dot pattern on the surface of the PC material through lithography technology; S6. Curing and forming: Thermally press the PC material after patterning treatment to form an ultra-high luminous efficiency perovskite quantum dot PC material, which is applied to the functional layer of the mini module.

[0006] Preferably, the particle size of the perovskite quantum dots prepared in S1 is 5 - 20 nm.

[0007] Preferably, the thickness of the anti-quenching layer in S2 is 1-10 nm. The inorganic oxide shell layer includes silicon dioxide, aluminum oxide or titanium dioxide, and the organic polymer shell layer includes polystyrene, polymethyl methacrylate or polyvinylpyrrolidone.

[0008] Preferably, the anti-quenching treatment specifically includes the following steps: S201: Prepare a precursor solution of the anti-quenching layer by adding an organic solvent to the corresponding material of the inorganic oxide shell layer or the organic polymer shell layer. S202: Disperse the perovskite quantum dots in the precursor solution of the anti-quenching layer, and stir simultaneously to promote mixing to form the anti-quenching layer. S203: Use spin coating to form the anti-quenching layer on the glass substrate. The spin coating speed is set at 3000-5000 revolutions per minute, and the spin coating time is 30-60 seconds. S204: After forming the anti-quenching layer, if it is an inorganic oxide shell layer, cure it in an oven at 80-120 °C for 2-4 hours; if it is an organic polymer shell layer, dry it in a vacuum oven at 60-80 °C for 6-8 hours.

[0009] Preferably, the organic solvent in S3 includes toluene or chlorobenzene, and the mass concentration of perovskite quantum dots in the quantum dot dispersion is 1%-3%.

[0010] Preferably, the mixing mass ratio of the quantum dot dispersion to the PC material in S4 is 1:5-1:10.

[0011] Preferably, the patterning treatment includes the following steps: S501: Spin coat a photoresist on the surface of the preliminary composite PC material. S502: Then cover a mask plate with a preset quantum dot pattern on the photoresist and expose it with ultraviolet light. S503: After the exposure is completed, develop it with a developer for 3-5 minutes and remove the unexposed photoresist to form a preset quantum dot pattern on the surface of the PC material.

[0012] Preferably, the hot pressing temperature in S6 is 180-220 °C, the pressure is 5-10 MPa, and the hot pressing time is 10-20 minutes. The Mini module functional layer includes an optical film, a light guide plate and a packaging layer.

[0013] The present invention provides a perovskite quantum dot PC material with ultra-high luminous efficiency for mini module applications, having the following beneficial effects: 1. The present invention combines a quantum dot dispersion liquid with a PC material. By utilizing the good mechanical properties, chemical stability, and high heat resistance of the PC material, a stable support matrix is provided for perovskite quantum dots. As a result, the composite material not only exhibits the high luminous efficiency of perovskite quantum dots but also possesses the practical properties of the PC material, meeting the dual requirements of mini modules for the optical and physical properties of the material.

[0014] 2. Through the anti - quenching treatment of perovskite quantum dots, the present invention effectively prevents the phenomenon of fluorescence quenching during subsequent processing and use. Moreover, by coating an inorganic oxide shell layer or an organic polymer shell layer on the surface of the quantum dots, the influence of external factors on the quantum dots can be effectively isolated, prolonging their fluorescence lifetime, maintaining the luminous efficiency, and ensuring the optical performance stability of the mini module during long - term use.

[0015] 3. By using photolithography technology to form a preset quantum dot pattern on the surface of the PC material, the present invention controls the light - emitting area and light propagation path of the mini module, adjusts the emission direction, intensity distribution, etc. of the light, achieves the purpose of local light - efficiency regulation, improves the utilization rate and extraction efficiency of light, and thus optimizes the display effect of the mini module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a flow chart of the application of the perovskite quantum dot PC material with ultra - high luminous efficiency to the mini module of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0018] Please refer to the attached Figure 1 , the embodiments of the present invention provide the application of the perovskite quantum dot PC material with ultra - high luminous efficiency to the mini module, including the following steps: S1. Synthesize perovskite quantum dots: Prepare perovskite quantum dots by thermal injection method in an inert gas environment; S2. Anti - quenching treatment: Coat an anti - quenching layer on the surface of the perovskite quantum dots, and the anti - quenching layer includes an inorganic oxide shell layer or an organic polymer shell layer; S3. Quantum dot dispersion: Disperse the anti - quenching treated perovskite quantum dots in an organic solvent and stir to form a uniform quantum dot dispersion liquid; S4. PC material composite: Mix the quantum dot dispersion liquid with the PC material, and through the solution blending method, disperse the quantum dots in the PC material matrix; S5, Patterning process: Through photolithography technology, a preset quantum dot pattern is formed on the surface of the PC material; S6, Curing and forming: The patterned PC material is hot-pressed to form a high-optical-efficiency perovskite quantum dot PC material, which is applied to the Mini module functional layer.

[0019] Specifically, by using the thermal injection method in an inert gas environment in S1, it can effectively prevent the perovskite quantum dots from being oxidized or interfered by other impurities during the synthesis process, ensure the integrity of the crystal structure and the stability of the optical properties of the quantum dots, prepare perovskite quantum dots with uniform particle size and high luminous efficiency, and lay a foundation for achieving high optical efficiency in the follow-up; Through the anti-quenching treatment in S2, the stability of the perovskite quantum dots is improved to prevent fluorescence quenching during subsequent processing and use. Moreover, coating an inorganic oxide shell or an organic polymer shell on the surface of the quantum dots can effectively isolate the influence of external factors on the quantum dots, extend their fluorescence lifetime, and maintain the luminous efficiency. The quantum dots after anti-quenching treatment can still emit light stably in a complex environment, ensuring the optical performance stability of the mini module during long-term use; Through S3, the anti-quenching treated perovskite quantum dots are uniformly dispersed in an organic solvent to form a quantum dot dispersion solution convenient for subsequent processing. By stirring, the quantum dots are fully dispersed in the solvent to avoid agglomeration. Moreover, the uniformly dispersed quantum dots can be evenly distributed in the PC matrix when compounded with the PC material subsequently, ensuring the uniformity of the optical properties of the composite material, avoiding local luminous differences, and thus making the mini module emit light more uniformly; Through S4, the quantum dot dispersion solution is combined with the PC material. Utilizing the good mechanical properties, chemical stability, and processing performance of the PC material, a stable support matrix is provided for the perovskite quantum dots. And the solution blending method can make the quantum dots uniformly dispersed in the PC material matrix to form a composite material with good comprehensive performance. Thus, the composite material not only has the high-light-efficiency luminous characteristics of the perovskite quantum dots but also has the practical performance of the PC material, meeting the dual requirements of the mini module for the optical and physical properties of the material; Through S5, a preset quantum dot pattern is formed on the surface of the PC material by photolithography technology to control the light-emitting area and light propagation path of the mini module. And according to the design requirements of the mini module, the emission direction, intensity distribution, etc. of the light are adjusted to achieve the purpose of local light efficiency regulation, improve the utilization rate and extraction efficiency of the light, and thus optimize the display effect of the mini module; The patterned PC material is hot-pressed through S6 to finally form the material into the desired shape and size. The formed ultra-high light efficiency perovskite quantum dot PC material is applied to the functional layer of the Mini module to improve the light-emitting effects of different functions in the mini module. At the same time, the hot-pressed and cured material can better adapt to the working environment of the mini module, ensuring that its optical and physical properties remain stable during long-term use.

[0020] In S1, the prepared perovskite quantum dots have a particle size of 5 - 20 nm.

[0021] Specifically, it can reduce the surface defects of quantum dots, lower the probability of non-radiative recombination, and can precisely adjust the emission color by controlling the particle size to meet the requirements of different color displays in the mini module.

[0022] In S2, the thickness of the anti-quenching layer is 1 - 10 nm. The inorganic oxide shell layer includes silicon dioxide, aluminum oxide, or titanium dioxide, and the organic polymer shell layer includes polystyrene, polymethyl methacrylate, or polyvinylpyrrolidone.

[0023] Specifically, the inorganic oxide shell layer, relying on its stable chemical properties and good barrier performance, effectively resists environmental erosion. The organic polymer shell layer, by virtue of its flexibility and intermolecular forces, tightly wraps the quantum dots to enhance their stability, thereby significantly extending the fluorescence lifetime of perovskite quantum dots and always maintaining high light efficiency emission in the complex working environment of the mini module, ensuring stable color and long-lasting brightness of the display screen.

[0024] The anti-quenching treatment specifically includes the following steps: S201: Prepare the anti-quenching layer precursor solution by adding an organic solvent to the corresponding material of the inorganic oxide shell layer or the organic polymer shell layer. S202: Disperse the perovskite quantum dots in the anti-quenching layer precursor solution and stir simultaneously to promote mixing to form the anti-quenching layer. S203: Use the spin-coating method to form the anti-quenching layer on the glass substrate. The spin-coating speed is set to 3000 - 5000 revolutions per minute, and the spin-coating time is 30 - 60 seconds. S204: After forming the anti-quenching layer, if it is an inorganic oxide shell layer, cure it in an oven at 80 - 120 °C for 2 - 4 hours. If it is an organic polymer shell layer, dry it in a vacuum oven at 60 - 80 °C for 6 - 8 hours.

[0025] Specifically, through S201, the corresponding material of the inorganic oxide shell layer or the organic polymer shell layer is dissolved in an organic solvent to prepare a uniform precursor solution, providing the basic material for forming the anti-quenching layer on the surface of perovskite quantum dots and ensuring the quality and performance of the subsequent film formation. Disperse perovskite quantum dots in the anti - quenching layer precursor solution through S202 and stir to evenly distribute the quantum dots in the solution, enabling the anti - quenching material to fully wrap the quantum dots and form a tight bond, providing a uniform dispersion system for subsequent film formation. Form an anti - quenching layer on the glass substrate by spin - coating through S203. Utilize the centrifugal force generated by high - speed rotation to evenly spread the mixed solution on the surface of the glass substrate. Controlling the spin - coating speed and time can precisely control the thickness and uniformity of the anti - quenching layer, improving the mechanical stability and optical properties of the anti - quenching layer. For the inorganic oxide shell layer, through curing in an oven, the inorganic oxide precursor can undergo a chemical reaction to form a stable oxide structure, enhancing the hardness and chemical stability of the anti - quenching layer. For the organic polymer shell layer, drying in a vacuum oven removes the solvent and causes cross - linking between polymer molecules, improving the mechanical strength and stability of the anti - quenching layer. At the same time, it avoids the degradation or performance change of the organic polymer at high temperatures, effectively isolating the influence of external environmental factors on the quantum dots and greatly improving the anti - quenching performance of perovskite quantum dots.

[0026] In S3, the organic solvent includes toluene or chlorobenzene, and the mass concentration of perovskite quantum dots in the quantum dot dispersion liquid is 1% - 3%.

[0027] Specifically, toluene has good solubility and can effectively disperse the perovskite quantum dots after anti - quenching treatment. At the same time, its chemical properties are relatively stable and it will not react chemically with perovskite quantum dots, ensuring that the optical properties of the quantum dots are not damaged, enabling the final quantum dot dispersion liquid to be stably used for PC material compounding. Chlorobenzene also has excellent solubility for perovskite quantum dots, enabling the quantum dots to be evenly dispersed in the dispersion liquid, ensuring the uniformity and stability of the quantum dot dispersion liquid when mixed with PC materials. Moreover, it improves the comprehensive performance of the ultra - high - efficiency perovskite quantum dot PC material, thereby enhancing the luminous efficiency and display effect of the mini - module.

[0028] In S4, the mass ratio of the quantum dot dispersion liquid to the PC material is 1:5 - 1:10.

[0029] Specifically, mixing the quantum dot dispersion liquid and the PC material in a mass ratio of 1:5 - 1:10 can take into account the physical support advantages of the PC material and the luminescent characteristics of the quantum dots, achieving a good balance between optical and physical properties in the materials of the mini - module.

[0030] The patterning process includes the following steps: S501: Spin - coat photoresist on the surface of the preliminarily compounded PC material. S502: Then cover a mask plate with a preset quantum dot pattern on the photoresist and expose it with ultraviolet light. After the exposure in S503 is completed, develop with a developer for 3 to 5 minutes, and remove the unexposed photoresist to form a preset quantum dot pattern on the surface of the PC material.

[0031] Specifically, spin-coat the photoresist on the surface of the preliminary composite PC material through S501 to provide a photosensitive medium for the subsequent lithography pattern transfer. And through the spin-coating process, using the centrifugal force generated by high-speed rotation, the photoresist is evenly spread on the surface of the PC material, laying a foundation for the subsequent exposure and development steps. Cover the photoresist with a mask plate with a preset quantum dot pattern through S502, and then expose it with ultraviolet light. The pattern on the mask plate plays a role of blocking and transmitting light. The ultraviolet light passes through the transparent area on the mask plate and irradiates the photoresist, causing a photochemical reaction in the photoresist, changing its solubility, and aligning the mask plate with the photoresist, realizing the transfer of the pattern from the mask plate to the photoresist to ensure that the photoresist can be accurately exposed according to the pattern on the mask plate. A clear and accurate preset quantum dot pattern is successfully formed on the surface of the PC material through S503, meeting the design requirements for local light effect regulation of the mini module, providing a basis for the subsequent selective distribution and function realization of quantum dots in these pattern areas, and helping to improve the optical performance and display effect of the mini module.

[0032] In S6, the hot pressing temperature is 180 - 220 °C, the pressure is 5 - 10 MPa, and the hot pressing time is 10 - 20 minutes. The Mini module functional layer includes an optical film, a light guide plate, and a packaging layer.

[0033] Specifically, hot pressing can make the PC material in a suitable softening state, enhance molecular activity, make the PC molecular chain segments easier to move and rearrange, which is beneficial to the further close combination of the PC material and the internal perovskite quantum dots, reduce interface defects, and improve the stability of the composite material. The high-light-efficiency perovskite quantum dot PC material is used as an optical film: Since perovskite quantum dots have high luminous efficiency and the PC material has good physical properties and processing properties, the optical film made by combining the two can convert and regulate the light emitted by the LED chip in the Mini module, realize high-color gamut display, and improve the color display effect of the picture. Ultra-high light efficiency perovskite quantum dot PC material as light guide plate: Ultra-high light efficiency perovskite quantum dot PC material can use its own characteristics to efficiently guide and distribute light. The high transparency and good optical uniformity of PC material provide a low-loss channel for light to propagate internally, while perovskite quantum dots, with their unique luminescence characteristics, re-emit and scatter light during the propagation process, effectively reducing light loss and dark areas, thereby improving the overall luminous efficiency and light uniformity of the Mini module, ensuring that the display is clear, bright, and without obvious differences in light and dark, laying the foundation for presenting high-quality visual effects; Ultra-high light efficiency perovskite quantum dot PC material as encapsulation layer: can provide all-round protection for the internal components of the Mini module. The PC material itself has good mechanical strength and chemical stability, which can effectively resist external mechanical impact, dust, water vapor and chemical corrosion, ensuring the physical integrity and chemical stability of the internal components. At the same time, the perovskite quantum dots give the encapsulation layer excellent optical properties, which can efficiently convert and regulate the light emitted by the LED chip, improve the luminous efficiency and color purity, and optimize the propagation path of the light, so that the light is emitted more evenly, reducing light loss and scattering, ensuring the reliable operation of the Mini module in complex environments, extending its service life, and significantly improving its optical performance, providing a strong guarantee for presenting high-quality display effects.

[0034] Embodiment 1 S1. Synthesis of perovskite quantum dots: Perovskite quantum dots were prepared by hot injection under an inert gas environment. The particle size of the perovskite quantum dots was 10 nm. S2. Anti-quenching treatment: S201, preparing an anti-quenching layer precursor solution by adding an organic solvent to the corresponding material of the inorganic oxide shell layer or the organic polymer shell layer; S202, dispersing the perovskite quantum dots in the anti-quenching layer precursor solution, stirring to promote mixing, and forming an anti-quenching layer; S203, forming an anti-quenching layer on the glass substrate by spin coating, wherein the spin coating speed is set to 3000-5000 rpm, and the spin coating time is 30-60 seconds; S204, after the anti-quenching layer is formed, if it is an inorganic oxide shell layer, it is cured in an oven at 80-120° C. for 2-4 hours, if it is an organic polymer shell layer, it is dried in a vacuum oven at 60-80° C. for 6-8 hours, wherein the thickness of the inorganic oxide shell layer is 7 nm; S3, quantum dot dispersion: dispersing the perovskite quantum dots after anti-quenching treatment in a toluene solvent, wherein the mass concentration of the perovskite quantum dots in the quantum dot dispersion is 2%, and stirring to form a uniform quantum dot dispersion; S4. PC Material Composite: Mix the quantum dot dispersion liquid with the PC material. Through the solution blending method, disperse the quantum dots in the PC material matrix. The mass ratio of the quantum dot dispersion liquid to the PC material is 1:5. S5. Patterning Treatment: S501. Spin-coat photoresist on the surface of the preliminarily composite PC material. S502. Then cover a mask plate with a preset quantum dot pattern on the photoresist and expose it with ultraviolet light. S503. After the exposure is completed, develop it with a developer for 4 minutes and remove the unexposed photoresist to form a preset quantum dot pattern on the surface of the PC material. S6. Curing and Molding: Thermally press the PC material after patterning treatment. The thermal pressing temperature is 200°C, the pressure is 7 MPa, and the thermal pressing time is 15 minutes to form a perovskite quantum dot PC material with ultra-high light efficiency. Apply it to the optical film of the Mini module through coating.

[0035] Example Two Referring to the preparation method of Example 1, the difference is that the perovskite quantum dot PC material with ultra-high light efficiency is applied to the light guide plate of the Mini module through thermoforming.

[0036] Example Three Referring to the preparation method of Example 2, the difference is that the perovskite quantum dot PC material with ultra-high light efficiency is applied to the encapsulation layer of the Mini module through molding and encapsulation.

[0037] Among them, in the Mini module of the perovskite quantum dot PC material with ultra-high light efficiency, when used as an optical film, it can efficiently convert and regulate light to achieve high-color gamut display. As a light guide plate, it can convert a point light source into a uniform surface light source, improving the light utilization rate and light output uniformity. Acting as an encapsulation layer, it can resist external erosion, protect internal components, and at the same time optimize the optical performance, comprehensively improving the display effect and reliability of the Mini module.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Ultra-high light efficiency perovskite quantum dot PC material is applied to mini modules, characterized by: The following steps are involved: S1. Synthesis of perovskite quantum dots: Preparation of perovskite quantum dots by hot injection method under an inert gas environment; S2, anti-quenching treatment: coating the surface of the perovskite quantum dots with an anti-quenching layer, wherein the anti-quenching layer comprises an inorganic oxide shell layer or an organic polymer shell layer; S3, quantum dot dispersion: dispersing the perovskite quantum dots after anti-quenching treatment in an organic solvent, stirring to form a uniform quantum dot dispersion; S4, PC material compounding: mixing the quantum dot dispersion with the PC material, and dispersing the quantum dots in the PC material matrix by solution blending method; S5, patterning processing: using photolithography technology to form a preset quantum dot pattern on the surface of the PC material; S6, curing and molding: The patterned PC material is hot-pressed to form ultra-high light-efficiency perovskite quantum dot PC material, which is used in the functional layer of the Mini module.

2. The application of the ultra-high light efficiency perovskite quantum dot PC material to the mini module according to claim 1 is characterized in that: The particle size of the perovskite quantum dots prepared in S1 is 5-20 nm.

3. The application of the ultra-high light efficiency perovskite quantum dot PC material to a mini module according to claim 1 is characterized in that: The thickness of the anti-quenching layer in S2 is 1-10 nm, the inorganic oxide shell layer includes silicon dioxide, aluminum oxide or titanium dioxide, and the organic polymer shell layer includes polystyrene, polymethyl methacrylate or polyvinyl pyrrolidone.

4. The application of the ultra-high light efficiency perovskite quantum dot PC material to a mini module according to claim 1 is characterized in that: The anti-quenching treatment specifically comprises the following steps: S201, preparing an anti-quenching layer precursor solution by adding an organic solvent to the corresponding material of the inorganic oxide shell layer or the organic polymer shell layer; S202, dispersing the perovskite quantum dots in the anti-quenching layer precursor solution, stirring to promote mixing, and forming an anti-quenching layer; S203, forming an anti-quenching layer on the glass substrate by spin coating, wherein the spin coating speed is set to 3000-5000 rpm, and the spin coating time is 30-60 seconds; S204. After the anti-quenching layer is formed, if it is an inorganic oxide shell layer, it is cured in an oven at 80-120° C. for 2-4 hours. If it is an organic polymer shell layer, it is dried in a vacuum oven at 60-80° C. for 6-8 hours.

5. The application of the ultra-high light efficiency perovskite quantum dot PC material to a mini module according to claim 1 is characterized in that: The organic solvent in S3 includes toluene or chlorobenzene, and the mass concentration of perovskite quantum dots in the quantum dot dispersion is 1% to 3%.

6. The application of the ultra-high light efficiency perovskite quantum dot PC material to a mini module according to claim 1 is characterized in that: The mixing mass ratio of the quantum dot dispersion and the PC material in S4 is 1:5-1:

10.

7. The application of the ultra-high light efficiency perovskite quantum dot PC material to a mini module according to claim 1 is characterized in that: The patterning process comprises the following steps: S501, spin coating photoresist on the surface of the preliminary composite PC material; S502, then covering the photoresist with a mask having a preset quantum dot pattern, and exposing it to ultraviolet light; S503, after the exposure is completed, developing is performed with a developer for 3 to 5 minutes, and the unexposed photoresist is removed to form a preset quantum dot pattern on the surface of the PC material.

8. The application of the ultra-high light efficiency perovskite quantum dot PC material to a mini module according to claim 1 is characterized in that: In the S6, the hot pressing temperature is 180-220° C., the pressure is 5-10 MPa, and the hot pressing time is 10-20 minutes. The Mini module functional layer includes an optical film, a light guide plate and a packaging layer.

Images