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Anti-glare film

A technology of anti-glare film and anti-glare layer, which is applied in the direction of identification devices, instruments, and other household appliances, can solve problems such as uneven quality, high cost, and poor quality, and achieve the effect of suppressing poor conditions

Active Publication Date: 2017-03-08
DAI NIPPON PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when an antireflection layer is formed on the antiglare layer, it is necessary to form an antireflection layer with a uniform film thickness, so the cost increases.
In addition, when the uniformity of the film thickness of the antireflection layer is not sufficient, there is a problem of uneven quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0173] Examples are given below to describe the present invention in more detail, but the present invention is not limited by these examples. In the examples, % and parts indicating content or usage-amount are based on weight unless otherwise specified. In addition, the evaluation methods of molds and anti-glare films in the following examples are as follows.

[0174] [1] Measurement of surface shape of anti-glare film

[0175] (measurement of surface altitude)

[0176] The elevation of the surface of the antiglare film was measured using a three-dimensional microscope PLμ2300 (manufactured by Sensofar). In order to prevent the warping of the sample, it was used for measurement after being bonded to a glass substrate with an optically transparent adhesive so that the concave-convex surface became the surface. In the measurement, the magnification of the objective lens was set to 10 times, and it measured. The horizontal resolutions Δx and Δy are both 1.66 μm, and the measu...

Embodiment 2

[0219] In addition to repeating the order Figure 15 The pattern shown in (made by passing it through a band-pass filter that removes components in a specific spatial frequency range from a pattern having a random brightness distribution) is exposed on the photosensitive resin film by laser light, Mold B was produced in the same manner as in Example 1, and an antiglare film B was produced in the same manner as in Example 1 except that the mold B was used.

Embodiment 3

[0221] Except having set the etching amount of the 2nd etching process to 10 micrometers, the mold C was produced similarly to Example 2, and the antiglare film C was produced similarly to Example 2 except having used the mold C.

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PUM

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Abstract

The present invention provides an anti-glare film, which comprises a transparent support and an anti-glare layer formed on the transparent support, and has a total haze of 1% or less. The opposite side of the transparent support has a fine uneven surface with fine unevenness, and the second derivative function d2logH2( f) / df2 is less than 0 when the spatial frequency is 0.01 μm-1, and greater than 0 when the spatial frequency is 0.02 μm-1.

Description

technical field [0001] The present invention relates to an antiglare film excellent in antiglare properties. Background technique [0002] Image display devices such as liquid crystal displays or plasma display panels, Braun tube (cathode ray tube: CRT) displays, organic electroluminescent (EL) displays, etc., once external light shines on the display surface, the visibility (visibility) will be reduced. will be visibly damaged. In order to prevent the entrance of such extraneous light, image display devices have conventionally been used in televisions or personal computers that value image quality, video cameras or digital cameras used outdoors where external light is strong, and mobile phones that use reflected light to display. An anti-glare film is used on the surface to prevent external light from entering. [0003] As such an antiglare film, for example, Patent Document 1 (Japanese Unexamined Patent Publication No. 2006-53371 ) describes an antiglare film produced by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/02B29C33/38B29C59/02B32B7/02C25D7/00G09F9/00
CPCC25D7/00B29C2035/0827B29C59/022B29C2059/023G02B5/0221G02B5/0278G02B5/0294B29C33/424B32B2307/408B32B2307/412B32B2307/538B32B2457/20B32B2457/202G02B5/0268
Inventor 古谷勉金玉馨藤井贵志
Owner DAI NIPPON PRINTING CO LTD
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