Milky white high-gain nanocrystal front projection display film

Abstract

The utility model relates to the technical field of display, in particular to a milk white high-gain nanocrystal orthographic projection display film which comprises a substrate layer which is a white semitransparent film, and a microlens array structure which is formed on the surface of the substrate layer. And the nanocrystal layer is arranged on the microlens array structure. And the polystyrene film layer is arranged on the nanocrystal layer. And the rare earth material layer covers the polystyrene film layer. And the protective layer is arranged on the rare earth material layer and used for protecting the internal structure from being influenced by the external environment, such as scraping and dust. According to the technical scheme, the requirements of the modern visual presentation technology for the projection film which is efficient, stable and easy to produce are met.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a film structure related to a display device, and specifically relates to a milky white high-gain nanocrystal front projection display film. Background Art

[0002] In today's digital age, projection technology has been widely used in various fields, from business presentations to home entertainment to displays in large public places. Traditional projection films often need to be used in specific environments, such as dark rooms, to ensure the clarity and brightness of the image. However, with the advancement of technology, the market demand for high-performance projection films is also increasing, especially those that can provide high-definition, high-brightness images in bright environments.

[0003] Milky white projection films are popular due to their unique scattering properties, which can effectively diffuse light to provide more uniform brightness and wider viewing angles. But traditional milky white projection films often perform poorly in terms of gain. Utility Model Content

[0004] The utility model aims to provide a milky white high-gain nanocrystal front projection display film to meet the demand of modern visual presentation technology for efficient, stable and easy-to-produce projection films.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A milky white high-gain nanocrystal front projection display film includes a base layer: the base layer is a white translucent film, which can improve the color contrast of the projection picture and improve the display effect. The material is any one of polyethylene terephthalate, polymethyl methacrylate, and polycarbonate, and the thickness is about 45-85μm. This layer serves as the main supporting structure of the projection film to ensure the overall stability and strength.

[0007] Microlens array structure: formed on the surface of the substrate layer. The diameter of each microlens is about a few microns to tens of microns. These microlenses focus the incident projection light to improve the clarity and brightness of the image and enhance the projection effect.

[0008] Nanocrystal layer: Arranged on top of the microlens array structure. This layer is mainly composed of milky white nanocrystal particles, which are mainly made of materials such as titanium dioxide, zinc oxide or silicate, and the size of the particles is between 6-70nm. The nanocrystal particles scatter the incident light, providing uniform brightness and a wide viewing angle.

[0009] Polystyrene film layer: Arranged on top of the nanocrystal layer. It regulates the light passing through and optimizes the projection effect.

[0010] Rare earth material layer: Covered on the polystyrene film layer. Use europium oxide or gadolinium nitrate rare earth materials. Further enhance the brightness and contrast of the display film. The thickness of the rare earth material layer is 15-30 nanometers.

[0011] Protective layer: Arranged on the rare earth material layer, with a thickness of 2-5μm. Protect the internal structure from the influence of the external environment, such as scratches, dust, etc.

[0012] Furthermore, the thickness of the substrate layer is 40-80 μm, which can ensure sufficient strength and rigidity while maintaining good transparency.

[0013] Furthermore, a microlens array structure is formed on the surface of the substrate layer, and each microlens has a diameter of 5-20 μm and a height or thickness of 2-10 μm.

[0014] Furthermore, the nanocrystal layer is arranged on the microlens array structure, with a thickness of 10-25 μm, which can ensure sufficient scattering effect.

[0015] Furthermore, a polystyrene film layer is arranged on the nanocrystal layer with a thickness of 4-12 μm, thereby achieving an optimal response effect.

[0016] Protective layer: Arranged on the rare earth material layer as the outermost layer. The thickness is about 1-4μm. Such a thickness can provide sufficient protection while maintaining the overall lightness and thinness.

[0017] Furthermore, the preparation method of the above-mentioned display film is as follows: Preparation of the substrate layer: Select a suitable material and prepare it to the required thickness of 40-80μm through an extrusion or casting process. This layer can be doped with an appropriate amount of nanoparticles during the preparation process. Preparation of the microlens array structure: Use a microlens manufacturing device to directly engrave or mold a microlens array on the substrate layer. Use ultraviolet curing or thermal curing technology to fix the microlens structure. Preparation of the nanocrystal layer: Select suitable milky white nanocrystalline particles, such as titanium dioxide, zinc oxide or silicate. Mix the nanocrystalline particles with an appropriate amount of dispersant to prepare a uniform slurry. Apply the slurry on the microlens array structure by scraping, spin coating or spraying technology, and perform a curing treatment.

[0018] Preparation of polystyrene film layer: Mix polystyrene (PS) polymer with an appropriate solvent to prepare a film solution. Ensure uniform mixing to obtain a stable film. Apply the PS film solution on the nanocrystal layer by blade coating, spin coating or spray coating. Curing is carried out at a certain temperature and time to form a polystyrene film layer. Preparation of rare earth material layer: Use europium oxide or gadolinium nitrate as rare earth raw materials, mix with an appropriate amount of organic solvent such as alcohol, and stir evenly. Use spin coating to apply the rare earth solution on the polystyrene film layer. Preparation of protective layer: Select an appropriate transparent polymer material, such as polyurethane or silicone grease. Dissolve the material in an appropriate solvent and apply it on the rare earth material layer by blade coating, spin coating or spray coating. Curing treatment is carried out to form a protective layer.

[0019] The technical solution adopted by the utility model has the following beneficial effects: the nanoparticles in the nanocrystal layer can efficiently scatter the projection light, making the projection picture more uniform and enhancing the display brightness. This enables a consistent display effect to be obtained when viewing from all angles in conditions of limited brightness, such as outdoors or in bright environments, meeting the needs of multiple users watching at the same time. The microlens array structure can locally focus the projection light, thereby greatly improving the clarity and contrast of the image. Due to the presence of the polystyrene film layer, the transmitted light can be adjusted in real time to adapt to different projection environments and needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the structure of a milky white high-gain nanocrystal front projection display film. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further explained below in conjunction with the accompanying drawings.

[0022] Embodiment 1:

[0023] A milky white high-gain nanocrystal front projection display film includes a base layer 1: the base layer 1 is a white semi-transparent film, which can improve the color contrast of the projection picture and improve the display effect. The material is polyethylene terephthalate, and the thickness is about 45-85μm. This layer serves as the main supporting structure of the projection film to ensure the overall stability and strength.

[0024] Microlens array structure 2: formed on the surface of substrate layer 1. The diameter of each microlens is about 15 μm, and its height or thickness is about 10 μm. These microlenses focus the incident projection light to improve the clarity and brightness of the image and enhance the projection effect.

[0025] Nanocrystal layer 3: Arranged on the microlens array structure 2. The thickness is about 20μm. This layer is mainly composed of milky white nanocrystal particles, which are mainly made of titanium dioxide and zinc oxide materials, and the size of the particles is between 7-13nm. 7nm nanoparticles account for about 80% of the total number. Nanocrystal particles scatter incident light, providing uniform brightness and a wide viewing angle.

[0026] Polystyrene film layer 4: arranged on the nanocrystal layer 3. The thickness is about 10 μm. It can adjust the light passing through and optimize the projection effect.

[0027] Rare earth material layer 5: covers the polystyrene film layer 4, has a thickness of 15-30 nm, and is made of europium oxide rare earth material.

[0028] Protective layer 6: arranged on the rare earth material layer 5, with a thickness of about 4 μm, to protect the internal structure from the influence of the external environment, such as scratches, dust, etc.

[0029] In summary, the technical solution provided by the utility model combines the excellent optical properties of nanocrystals with the high brightness and high contrast characteristics of rare earth materials, making the projection image more uniform and enhancing the display brightness. A consistent display effect can be obtained when viewed from all angles.

Claims

1. A milky white high-gain nanocrystal front projection display film, comprising a base layer: the base layer is a white semi-transparent film, which can improve the color contrast of the projection picture and improve the display effect, characterized in that: The invention also includes a microlens array structure: formed on the surface of the substrate layer; a nanocrystal layer: arranged on the microlens array structure; a polystyrene Thin film layer: arranged on the nanocrystal layer; Rare earth material layer: covering on the polystyrene film layer; Protective layer: arranged on the rare earth material layer as the outermost layer.

2. A milky white high-gain nanocrystal front projection display film as claimed in claim 1, characterized in that: The thickness of the basal layer is 40-80 μm.

3. A milky white high-gain nanocrystal front projection display film as claimed in claim 1, characterized in that: The microlens array structure is formed on the surface of the substrate layer, and the diameter of each microlens is about 5-20 μm, and the height or thickness thereof is 2-10 μm.

4. A milky white high-gain nanocrystal front projection display film as claimed in claim 1, characterized in that: The thickness of the nanocrystal layer is about 10-25 μm.

5. The milky white high-gain nanocrystal front projection display film according to claim 1, characterized in that: The thickness of the polystyrene film layer is 4-12 μm.

6. The milky white high-gain nanocrystal front projection display film according to claim 1, characterized in that: The rare earth material layer has a thickness of 15-30 nm.

7. The milky white high-gain nanocrystal front projection display film according to claim 1, characterized in that: The thickness of the protective layer is 1-4 μm.

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