Anti-dazzling membrane

A technology of anti-glare film and anti-glare layer, which is applied in TV, color TV, applications, etc., and can solve the problems of black display image quality degradation, white screen, screen flickering, etc.

Inactive Publication Date: 2004-10-27
NIPPON PAPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the case of a liquid crystal display of a type in which anti-glare properties are imparted by diffusing reflected light due to the unevenness of the anti-glare layer, if the resolution of the display is high, the light passing through the color filter pixels from the backlight, etc. The surface of the glare layer is scattered and mixed, so the screen flickers, which significantly reduces the visibility, etc.
[0005] In the prior art, in order to prevent the flickering of the image, the added amount of particles had to be increased to increase the haze. Therefore, when the image is displayed on a liquid crystal panel, the image is off-white, especially the image quality is lowered due to black display.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] [paint preparation]

[0038] 3.0 g of MX300 (polyacrylic resin particles, average particle diameter 3.0 μm, manufactured by Soken Chemical Co., Ltd.), PL-1 (40% silica fine particle dispersion in toluene, average particle diameter 0.01 μm, manufactured by Fuso Chemical Co., Ltd. ) Co., Ltd.) 7.5 g and 20.0 g of toluene were mixed and stirred well. To this solution, 41.7 g of Viimset 500 (acrylic ionizing radiation-curable resin, manufactured by Arakawa Chemical Co., Ltd.) and 2.3 g of Darokyua 1173 (photopolymerization initiator, manufactured by Ciba Specialty Chemical Co., Ltd.) were added. , then add 23.0 g of methyl ethyl ketone (MEK) and 2.5 g of ethylene glycol monobutyl ether (butyl cellosolve), and add 0.5 g of BYK320 (manufactured by BYK Chemical Co., Ltd.) as a leveling agent, and fully Stir to prepare a coating.

[0039] [Anti-glare film production]

[0040] On FTUV80UZ (triacetyl cellulose film, produced by Fuji Photo Film Co., Ltd.), the coating of the ab...

Embodiment 2

[0042] [paint preparation]

[0043] MX300, 3.0 g, and 7.5 g of PL-3 (40% dispersion of silica fine particles in toluene, manufactured by Fuso Chemical Co., Ltd., average particle size: 0.03 μm) and 20.0 g of toluene were mixed and stirred thoroughly. To this solution, add Viimset 500, 41.7 g, Daroquia 1173, 2.3 g, MEK, 23.0 g, butyl cellosolve 2.5 g, and BYK 320, 0.5 g, and stir well to prepare a paint.

[0044] [Anti-glare film production]

[0045] Apply the above paint on the FTUV80UZ through a Meyer rod #6, and after drying at 80°C for 1 minute, use a high-pressure mercury lamp to irradiate 350mJ / cm in a nitrogen environment 2 curing by ultraviolet light. The thickness of the obtained coating film was 4.2 μm.

Embodiment 3

[0047] [paint preparation]

[0048] Mix 1.8 g of MX150 (polyacrylic resin microparticles, manufactured by Soken Chemical Co., Ltd., average particle diameter: 1.5 μm), 3.0 g of PL-1, and 33.2 g of toluene, and stir well. To this solution, 25.6 g of Viimset 500 and 1.4 g of Daroquia 1173 were added, 31.5 g of MEK and 3.5 g of butyl cellosolve were added, and 0.5 g of BYK 320 was added, and stirred well to prepare a paint.

[0049] [Anti-glare film production]

[0050] Apply the above paint on the FTUV80UZ through a Meyer rod #6, and after drying at 80°C for 1 minute, use a high-pressure mercury lamp to irradiate 350mJ / cm in a nitrogen environment 2 curing by ultraviolet light. The thickness of the obtained coating film was 2.7 μm.

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Abstract

Provided is a glare shielding film for surface protection which has a low degree of haze, is excellent in transparency and scratch resistance, reduces the flickering and whitishness (white blurring) of an image, and improves the visibility of a display. In the glare shielding film, a glare shielding layer containing two fine particles and a resin is formed. The fine organic particles of a first type have an average particle size of 1-4 [mu]m and an index of refraction of 1.45-1.55. The fine inorganic particles of a second type have an average particle size of below 0.1 [mu]m and an index of refraction of 1.45-1.55. The paint film thickness of the glare shielding layer is 0.8-2.5 times as large as the average particle size of the fine particles of the first type, and the 60[deg.] specular glossiness of the surface of the glare shielding layer is 65% or below.

Description

technical field [0001] The present invention relates to an antiglare film used on the surfaces of various displays such as notebook personal computers, personal computer monitors, and televisions. Background technique [0002] Displays such as notebook personal computers and liquid crystal monitors recognize images through the surface protection substrate on the surface. These displays use a backlight inside the body or use external light to improve visibility. These displays have an anti-glare treatment on the surface protection substrate to reduce internal light and external light intake and improve image visibility. [0003] As such an antiglare film, a film in which a resin containing a filler such as silica is coated on the surface of a transparent base film is known (for example, refer to JP-A-6-18706). Among them, the anti-glare film has anti-glare properties by diffusing reflected light due to the unevenness of the anti-glare layer, but if the unevenness is too lar...

Claims

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Application Information

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IPC IPC(8): G02B1/11B32B27/20C08J7/04G02B1/10G02B5/02H04N5/72
CPCB29D11/00788B32B2307/584G02B5/0226G02B5/0268
Inventor 荻野明人早川润一
Owner NIPPON PAPER IND CO LTD
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