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Organic-inorganic hybrid film with photoconductive property and total reflection characteristic and preparation method thereof

A light reflective layer, inorganic technology, applied in the coupling of optical waveguides, chemical instruments and methods, light guides, etc., can solve the problem that the final utilization rate of LCD display is less than 5%.

Inactive Publication Date: 2010-03-17
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For all portable products, low power consumption, long-term use, and thinness are the eternal goals. However, the side light source of the traditional light guide plate and the LCD display are less than 5% from the light guide plate to the final utilization rate. , or even lower

Method used

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  • Organic-inorganic hybrid film with photoconductive property and total reflection characteristic and preparation method thereof
  • Organic-inorganic hybrid film with photoconductive property and total reflection characteristic and preparation method thereof
  • Organic-inorganic hybrid film with photoconductive property and total reflection characteristic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] figure 2 is a partially cut-away perspective view of the organic-inorganic hybrid film prepared in Example 1, image 3 yes figure 2 Enlarged view of part "A" in Figure 4 yes figure 2 Schematic cross-section of the film shown.

[0088] see Figure 2 ~ Figure 4 , The organic-inorganic hybrid film 100 is composed of a substrate 110, a light reflection layer 120, a light guide layer 130 and a light diffusion layer 140, and the thickness of the organic-inorganic hybrid film is 0.05mm.

[0089] The base 110 is in the form of a sheet. The thickness is about 0.04 mm, including the sides 111 , the upper surface 112 and the lower surface 113 . The substrate can be made of polyethylene terephthalate (PET) film with a refractive index of 1.65, or can be made of butylene terephthalate (PBT) with a refractive index of 1.45.

[0090] First, a metal film with a thickness of 50 nm is evenly coated on the PET substrate by a coating method or a vacuum sputtering method as a base ...

Embodiment 2

[0098] The present organic-inorganic hybrid thin film is the same as the organic-inorganic hybrid film shown in Embodiment 1 except for the optical guiding layer 134 . Further description of the substrate 110, the light reflection layer 120, and the light diffusion layer 140 is thus omitted.

[0099] The thickness of the organic-inorganic hybrid thin film is 0.06mm.

[0100] The light-guiding layer 134 is obtained by assembling 20 layers of organic-inorganic hybrid silicon nanoparticles with a particle size of about 300 nm and polycarbonate with a weight-average molecular weight of 25,000 after surface activation modification on the light-reflecting layer 120. Layer 134 has a thickness of approximately 3 μm and a refractive index of 1.40.

[0101] In the ultraviolet-infrared-near-infrared instrument, light sources of fixed wavelengths (450nm, 550nm, 650nm) are used to perform optical tests on the organic-inorganic hybrid film, and the light transmittance exceeds 85%.

Embodiment 3

[0103] The present organic-inorganic hybrid thin film is the same as the organic-inorganic hybrid film described in Embodiment Mode 2 except for the optical guiding layer 135 . Further description of the substrate 110, the light reflection layer 120, and the light diffusion layer 140 is thus omitted.

[0104] The organic-inorganic hybrid thin film has a thickness of 0.07mm.

[0105] The light-guiding layer 135 is obtained by assembling 20 layers of organic-inorganic hybrid particles with a particle size of about 500 nm and polycarbonate with a weight-average molecular weight of 30,000 after surface activation modification on the light-reflecting layer 120. The light-guiding layer 135 The thickness is about 3 μm. The refractive index of the light guiding layer 135 is 1.42.

[0106] In the ultraviolet-infrared-near-infrared instrument, light sources with fixed wavelengths (450nm, 550nm, 650nm) are used to perform optical tests on organic-inorganic hybrid films, and the light t...

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Abstract

The invention discloses an organic-inorganic hybrid film which comprises a light reflection layer, a photoconductive layer and a light diffusion layer or a photodiffusion layer arranged on the photoconductive layer, wherein the refractive index of the light diffusion layer or the photodiffusion layer is larger than that of the photoconductive layer, and the refractive index of photoconductive layer is larger than that of the light reflection layer. The film also comprises a substrate which is arranged under the light reflection layer, and the refractive index of the light reflection layer is larger than that of the substrate. The organic-inorganic hybrid film has the optical characteristics of photoconduction, total reflection and diffuse scattering, high mechanical strength and thicknessof 0.01-0.08mm. The total reflection characteristic of the film can effectively improve the utilization ratio of a backlight source; and a light guide plate and a reflecting plate in a traditional backlight module are combined into a whole, thereby achieving the purpose of thinness.

Description

technical field [0001] The invention relates to an organic-inorganic hybrid thin film with light guiding and total reflection characteristics and a preparation method thereof. Background technique [0002] Thin film products are widely used in industry, especially in the field of optical and electronic industries. It can be said that the development of optical thin films has promoted the development of the entire optical equipment and optical equipment. Today, almost all optical or optoelectronic systems contain various optical films. Without optical films, we would not have high-performance cameras and video cameras, and we would not have lasers and liquid crystal displays. [0003] After nearly ten years of development, flat panel display devices, mainly thin film transistor liquid crystal display devices (TFT-LCD) and plasma display devices (PDP), have become a huge industry with rapid development. For all portable products, low power consumption, long-term use, and th...

Claims

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Application Information

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IPC IPC(8): G02B6/00G02B6/255G02F1/13357B32B7/02B32B5/16B32B27/00B32B37/02
Inventor 赵宁杨晓丽卢晓英杨曙光张小莉卜诗尧徐坚
Owner INST OF CHEM CHINESE ACAD OF SCI
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