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Optical body and light-emitting device

A technology of optical body and light-emitting area, which is applied in optics, lighting devices, optical components, etc., can solve the problem that visual recognition people cannot recognize the existence of light guide plates, and achieve excellent functions and excellent anti-reflection effects

Active Publication Date: 2018-11-23
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, such a light guide plate needs to make it impossible for visual recognition people to recognize the existence of the light guide plate when the light source is turned off.

Method used

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  • Optical body and light-emitting device
  • Optical body and light-emitting device
  • Optical body and light-emitting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] (1-1. Fabrication of Optical Body)

[0117] Figure 7 It shows the structure of the optical body 1-1 which concerns on Example 1. In Example 1, the optical body 1-1 was produced through the following process. First, as a substrate 10-1, a polymethyl methacrylate film (manufactured by Sumika Acrylic Sales Co., Ltd., Technolloy) having a thickness of 150 μm was prepared. Next, use Image 6 The transfer apparatus 300 shown in 10 forms the second fine concave-convex structure 12 on one surface (here, the second surface 10B) of the substrate 10-1. Here, as the photocurable resin composition, an ultraviolet curable acrylic resin composition (SK1120 manufactured by Dexerials Corporation) was used. In addition, in order to improve the adhesiveness of the substrate 10-1 and the cured layer of the uncured resin layer, the second surface 10B of the substrate 10-1 is subjected to primer treatment in advance. By the primer treatment, a primer layer having a thickness of approxi...

Embodiment 2

[0136] (2-1. Fabrication of Optical Body)

[0137] Figure 8The structure of the optical body 1-2 concerning Example 2 is shown. In Example 2, the optical body 1-2 was produced by using the optical body 1-1 as a transfer mold. Specifically, first, the substrate 10-1 used in Example 1 was prepared. Next, primer treatment is performed on both surfaces of the base material 10-1 in order to improve the adhesiveness between the base material 10-1 and each cured layer described later. The details of the primer treatment were the same as in Example 1. A primer layer having a thickness of approximately 3 μm was formed on both surfaces of the substrate 10-1 by the primer treatment. Next, an uncured resin layer of the photocurable resin composition is formed on one surface (here, the second surface 10B) of the base material 10-1. Next, the shape of the second surface 10B of the optical body 1 - 1 , that is, the second fine uneven structure 12 and the coarse uneven structure 13 is t...

Embodiment 3

[0142] (3-1. Fabrication of Optical Body)

[0143] Figure 9 It shows the structure of the optical body 1-3 which concerns on Example 3. Optical body 1-2 was used as a transfer mold in Example 3 to produce optical body 1-3. Specifically, first, the substrate 10-1 used in Example 1 was prepared. Next, primer treatment is performed on both surfaces of the base material 10-1 in order to improve the adhesiveness between the base material 10-1 and each cured layer described later. The details of the primer treatment were the same as in Example 1. A primer layer having a thickness of approximately 3 μm was formed on both surfaces of the substrate 10-1 by the primer treatment. Next, an uncured resin layer of the photocurable resin composition is formed on one surface (here, the second surface 10B) of the substrate 10-1. Next, the shape of the second surface 10B of the optical body 1-2, that is, the second fine uneven structure 12 and the coarse uneven structure 13 is transferred...

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Abstract

The invention is to provide a light-emitting device capable of being used as a light guide plate and having excellent anti-reflective functionality against external light. To solve the aforementionedproblem, one aspect of the present invention provides an optical body comprising: a base material; a macro-uneven structure formed on one surface of the base material and emitting, from the other surface of the base material, internally-propagated light that is light which has entered inside the base material from a side of the base material; and a micro-uneven structure formed periodically alongboth surfaces of the base material and the surface of the macro-uneven structure and having the average period of unevenness being at or below a wavelength of visible light. The surface of the macro-uneven structure has an inclined surface that is inclined by at least 30 degrees to less than 90 degrees with respect to the one surface of the base material, and the micro-uneven structure is arrangedin a staggered pattern relative to the traveling direction of the internally-propagated light.

Description

technical field [0001] The invention relates to an optical body and a light emitting device. Background technique [0002] As one type of optical body, an optical body is known in which a waveguide phenomenon of light and a macro concave-convex structure (macro concave-convex structure) are combined. Such an optical body is also called a light guide. A coarse concavo-convex structure is formed on one surface of the light guide plate. In addition, light enters the inside of the light guide plate from the light source provided on the side surface of the light guide plate. The light incident on the inside of the light guide plate, that is, the internal propagating light propagates inside the light guide plate while being reflected on the surface of the light guide plate (ie, the interface between the inside and outside of the light guide plate). After that, the internal propagating light is reflected at the surface of the rough concave-convex structure, and is emitted from t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/118F21S2/00G02B6/00G02F1/13357F21Y115/10
CPCG02B1/118G02B5/045G02B6/0036G02B6/0065G02B6/0045
Inventor 梶谷俊一樱井恭子土井克浩林部和弥花岛直树金子直人
Owner DEXERIALS CORP
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