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Translucent structure

A technology of light transmission and structure, applied in the direction of optics, light source, electric light source, etc., can solve the problem of image visual recognition reduction, and achieve the effect of suppressing the reduction of visual recognition and low haze

Active Publication Date: 2018-04-17
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] On the other hand, when the antiglare-treated substrate is placed on the display surface of an image display device, there is a problem that glare occurs on the display surface due to the unevenness, and the visibility of the image decreases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach }

[0058] figure 1 Among them, the translucent structure 1 of this embodiment has the translucent base material 3 and the antiglare layer 5 formed on the first surface 3A. The antiglare layer 5 has a concavo-convex structure on the surface. The surface of the antiglare layer 5 constitutes the surface of the translucent structure 1 . Therefore, the translucent structure 1 has a concavo-convex structure on the surface. It should be noted, figure 1 In this example, the ratio of the thickness of the anti-glare layer 5 to the thickness of the light-transmitting base material 3 is larger than the actual ratio for the sake of convenience.

[0059] (translucent substrate)

[0060] As the translucent base material 3, any base material may be used as long as it can transmit visible light, and a transparent base material is preferable. Transparency in the light-transmitting substrate 3 means that light in the wavelength range of 400 nm to 1100 nm transmits an average of 80% or more (av...

no. 2 approach }

[0184] Figure 4 It is a schematic cross-sectional view showing the translucent structure 2 according to the second embodiment of the present invention. Figure 5 It is a diagram illustrating the relationship between the surface shape of the light-transmitting structure 2 , its smoothed image, and an image obtained as a difference of their XYZ data.

[0185] The translucent structure 2 of the present embodiment has a translucent base material 4 . The translucent substrate 4 has a concavo-convex structure on the first surface 4A. The first surface 4A of the translucent substrate 4 constitutes the surface of the translucent structure 2 . Therefore, the translucent structure 2 has a concavo-convex structure on the surface.

[0186] The light-transmitting base material 4 is the same as the light-transmitting base material 3 of the first embodiment except that the first surface has a concavo-convex structure, and the preferred form is also the same.

[0187] The uneven structur...

no. 3 approach }

[0199] Figure 6 It is a cross-sectional view schematically showing the translucent structure 6 according to the third embodiment of the present invention. Figure 7 It is a cross-sectional view schematically illustrating the structure near the surface of the translucent structure 6 . In addition, in the embodiment shown below, the same code|symbol is attached|subjected to the component corresponding to the said embodiment, and detailed description is abbreviate|omitted.

[0200] The translucent structure 6 of the present embodiment has a translucent substrate 3 , an antiglare layer 5 formed on the first surface 3A of the translucent substrate 3 , and an antireflection layer formed on the antiglare layer 5 7 (functional layer), and the water and oil repellent layer 9 (functional layer) formed on the anti-reflection layer 7. The antireflection layer 7 and the water and oil repellent layer 9 each have a concavo-convex structure on the surface similarly to the antiglare layer 5...

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PUM

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Abstract

In order to provide a translucent structure having a low haze factor and low glare, the present invention provides a translucent structure having an uneven structure on the surface thereof, the unevenstructure including first projections 5a having a diameter of 1 [mu]m or greater at a height of 0.05 [mu]m above the a surface shape (a) bearing height obtained by measuring the uneven structure using a laser microscope, the average value of the diameter of the first projections 5a being 1.000-16.000 [mu]m, a plurality of projections in an image (c) in which the plurality of projections are scattered including second projections 5b having a diameter of 0.4 [mu]m or greater at a height of 0.01 [mu]m when 0 is used as the bearing height, the image (c) being obtained by obtaining a smoothing image (b) by filtering of the surface shape (a) by image processing software and subtracting XYZ data of the smoothing image (b) from XYZ data of the surface shape (a), the density of the second projections 5b being 0.023-7.210 / [mu]m2, and the ratio of the total area of a cross-section of the second projections 5b at a height of 0.01 [mu]m being 0.900-90.000%.

Description

technical field [0001] The present invention relates to an anti-glare translucent structure having low haze and low glare properties. Background technique [0002] Image display devices (liquid crystal displays, organic electroluminescence (EL) displays, plasma displays, etc.) installed in various devices (TVs, personal computers, smartphones, mobile phones, vehicles, etc.), indoor lighting (fluorescent lamps, etc.) When external light such as sunlight and sunlight is reflected on the display surface, the visibility is reduced due to the reflected image. [0003] In order to suppress reflection of external light, an anti-glare treatment is performed on the surface of a substrate (such as a glass plate) constituting a display surface of an image display device. The anti-glare treatment is a process of providing unevenness on the surface and scattering incident light by the unevenness. Due to the diffuse reflection of incident light, the reflection image becomes unclear, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02B32B3/30B32B7/02G02B1/113G02B1/115H01L51/50H05B33/02
CPCG02B1/113G02B1/115G02B5/0221G02B5/0247G02B5/0278G02B1/14G02B1/18B32B17/06H10K77/10H10K50/854B32B3/30G02B1/11G02B5/0205
Inventor 竹田洋介池田徹府川真
Owner ASAHI GLASS CO LTD
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