Unlock instant, AI-driven research and patent intelligence for your innovation.

Anti-glare film, method for producing same, and use thereof

An anti-glare film, polymer technology, applied in other household appliances, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve problems such as difficulty in achieving balance, stronger specular reflection, and insufficient anti-glare properties.

Active Publication Date: 2020-07-17
DAICEL CHEM IND LTD
View PDF11 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in this anti-glare film, too much emphasis is placed on the degree of blackening of the displayed image, the specular reflection becomes strong, and the anti-glare property is insufficient.
That is, in the conventional anti-glare film, the glare is only suppressed by reducing the light (reflection) from the fluorescent lamp, and the reflective feeling (especially the glare caused by the reflected light by specular reflection) is not reduced.
In addition, in order to improve the visibility, it is necessary to weaken the light scattering property to reduce the haze, so there is a tendency for the anti-glare property to decrease.
That is, anti-glare property and visibility are in a trade-off relationship, and it is very difficult to satisfy these properties at the same time
Especially for display devices with medium-sized screens (for example, PCs such as notebook or portable PCs, desktop PCs, TVs, etc.), visibility, anti-glare properties including anti-reflection, transparency, etc. Both are highly demanding, making it difficult to strike a balance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anti-glare film, method for producing same, and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0168] 15.0 parts by weight of an acrylic polymer having a polymerizable group, 3 parts by weight of cellulose acetate propionate, 150 parts by weight of an acrylic ultraviolet curable compound containing nano-silica, and 1 part by weight of silicone acrylate were dissolved in A mixed solvent of 101 parts by weight of methyl ethyl ketone and 24 parts by weight of 1-butanol was used to prepare a solution.

[0169] After casting this solution onto a PET film using a wire bar (#20), it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm.

[0170] Then, the coating is irradiated with ultraviolet light for about 5 seconds by a high-pressure mercury lamp (the accumulated light amount is about 100mJ / cm 2 irradiation, the same below), the coating was cured by ultraviolet rays to obtain an anti-glare film.

Embodiment 2

[0172] 12.5 parts by weight of an acrylic polymer having a polymerizable group, 4 parts by weight of cellulose acetate propionate, 150 parts by weight of an acrylic ultraviolet curable compound containing nano-silica, and 1 part by weight of silicone acrylate are dissolved in methyl ethyl ketone A mixed solvent of 81 parts by weight, 24 parts by weight of 1-butanol, and 13 parts by weight of 1-methoxy-2-propanol was used to prepare a solution.

[0173] After casting this solution onto a PET film using a wire bar (#20), it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 9 μm.

[0174] Then, the coating was irradiated with ultraviolet rays for about 5 seconds by a high-pressure mercury lamp, and the coating was cured by ultraviolet rays to obtain an anti-glare film.

Embodiment 3

[0176] 45.6 parts by weight of an acrylic polymer having a polymerizable group, 2.3 parts by weight of cellulose acetate propionate, 70.7 parts by weight of urethane acrylate A, 8.2 parts by weight of dipentaerythritol hexaacrylate, and 0.6 parts by weight of silicone acrylate 0.1 parts by weight of fluorine compounds having polymerizable groups, 1 parts by weight of photoinitiator A, and 1 part by weight of photoinitiator B are dissolved in 128 parts by weight of methyl ethyl ketone, 25 parts by weight of 1-butanol and 31 parts by weight of cyclohexanone The solvents were mixed and a solution was prepared.

[0177] After casting this solution onto a TAC film using a wire bar (#16), it was left in an oven at 80° C. for 1 minute to evaporate the solvent, thereby forming a coating layer having a thickness of about 7 μm.

[0178] Then, the coating was irradiated with ultraviolet rays for about 5 seconds by a high-pressure mercury lamp, and the coating was cured by ultraviolet ray...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

According to the present invention, an anti-glare film having a luminous reflectance of 3.8% or less and a haze of at least 40% is prepared. This anti-glare film may have a 60 degree gloss of 15% or less. This anti-glare film comprises: a transparent substrate layer; and an anti-glare layer formed on at least one surface of the transparent substrate layer, wherein the anti-glare layer may be a cured product of a curable composition containing one or more polymer components and one or more curable resin precursor components, and in particular, at least two components selected from among the polymer components and the curable resin precursor components may be phase-separated by wet spinodal decomposition. This anti-glare film can improve anti-reflection properties.

Description

technical field [0001] The present invention relates to an antiglare film usable for various display devices such as a liquid crystal display (LCD) and an organic electroluminescence (EL) display, as well as its production method and use. Background technique [0002] Anti-glare films have been widely used as films for improving visibility by preventing external scenes from being reflected on the display surfaces of image display devices such as LCDs and organic EL displays. The anti-glare film exhibits anti-glare properties by forming concavo-convex shapes on the surface to scatter and reflect external light. However, if the scattered light of external light is too strong, the overall display of the image display device will be easily deteriorated. The color becomes white or cloudy, and the visibility decreases. In addition, the uneven shape of the surface interferes with the pixels of the image display device to generate brightness distribution, which is likely to cause g...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02B05D5/06B32B7/02G09F9/00B32B7/023B05D7/24H01L51/50H01L27/32G02F1/1335H05B33/02H05B33/10
CPCG02B5/02G02F1/1335G09F9/00H05B33/02H05B33/10B05D5/06B05D7/24B32B17/10018B32B7/023G02B1/111G02B5/0242G02B5/0278G02F1/133502B32B2367/00B32B2457/202B32B2457/206G02B5/0236
Inventor 菅原庆峰林正树广瀬健策
Owner DAICEL CHEM IND LTD