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Antiglare film, process for producing the same and display apparatus utilizing the film

An anti-glare film and anti-glare layer technology, applied in chemical instruments and methods, transportation and packaging, instruments, etc., can solve problems such as deterioration of anti-glare properties, and achieve suppression of white turbidity, reduction of protrusions, and improvement of surface roughness. Effect

Inactive Publication Date: 2009-10-14
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the smoothing of the concavo-convex shape is intentionally achieved by extending the concavo-convex period on the surface of the anti-glare layer 112, as described above, flat portions are formed between the protrusions of the fine particles 113, so that the anti-glare property deteriorates.

Method used

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  • Antiglare film, process for producing the same and display apparatus utilizing the film
  • Antiglare film, process for producing the same and display apparatus utilizing the film
  • Antiglare film, process for producing the same and display apparatus utilizing the film

Examples

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Effect test

no. 1 approach

[0101] (1-1) Structure of liquid crystal display device

[0102] figure 1 An example of the configuration of the liquid crystal display device according to the first embodiment of the present invention is shown. Such as figure 1 As shown, the liquid crystal display device has a liquid crystal panel 2 and a light source 3 arranged directly below the liquid crystal panel 2. The liquid crystal panel 2 has an anti-glare film 1 on its display screen side.

[0103] The light source 3 is used to provide light to the liquid crystal panel 4, and has, for example, a fluorescent lamp (FL), EL (electroluminescence), LED (light emitting diode), and the like. The liquid crystal panel 2 is used to temporally and spatially adjust the light provided by the light source 3 and display information. Polarizing plates 2a and 2b are provided on both surfaces of the liquid crystal panel 2. Each of the polarizing plates 2a and 2b allows only one of the perpendicularly crossing polarized light component...

no. 2 approach

[0157] (2-1) Structure of anti-glare film

[0158] Figure 4 An example of the configuration of the anti-glare film 10 according to the second embodiment of the present invention is shown. In the anti-glare film 10, an anti-glare layer 12 containing fine particles 13 is formed on a substrate 11, and a transparent resin layer 14 having light transmittance is formed on the anti-glare layer 12. The base material 11, the anti-glare layer 12, and the fine particles 13 are similar to those in the first embodiment described above. On the surface of the anti-glare layer 12, a fine concavo-convex shape formed by convection and aggregation of fine particles 13 is formed.

[0159] The transparent resin layer 14 is laminated on the anti-glare layer 12, which is a layer whose refractive index is lower than that of the anti-glare layer 12, and can reduce the reflectance of the surface. The transparent resin layer 14 is formed along the anti-glare layer 12, for example, and covers the surface of...

Embodiment 1

[0184] First, as fine particles, crosslinkable styrene pellets SBX6 (manufactured by SEKISUI PLASTICS CO., LTD.) having a center particle size equal to about 6 μm are separated by fine powder. The classification is carried out by the mechanical method, and fine particles of 10 μm or more are removed. The average diameter of the fine particles obtained after the classification process is equal to 6.3 μm, the median diameter is equal to 5.5 μm, and the fluctuation coefficient is equal to 31%.

[0185] Next, by using the fine particles obtained after the classification process, the raw materials of the following coating composition are mixed. The paint was stirred with a magnetic stirrer for one hour, and filtered through a 20 μm sieve with a roughness equal to or greater than three times the average diameter. After that, one surface of a triacetyl cellulose (TAC) film (manufactured by Fuji Photo Film Co., Ltd.) having a thickness of 80 μm (manufactured by Fuji Photo Film Co., Ltd.) ...

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Abstract

An antiglare film comprising a base material and, superimposed thereon, an antiglare layer containing microparticles. The antiglare layer on its surface has a configuration of minute unevenness. The configuration of minute unevenness of the antiglare layer is generated by applying a coating material containing microparticles onto the base material and, by the convection of the coating material, aggregating the microparticles. The thickness of the antiglare layer is in the range of average diameter of microparticles to thrice the average diameter of microparticles. The microparticles consist essentially of microparticles whose diameter is less than twice the thickness of the antiglare layer.

Description

Technical field [0001] The invention relates to an anti-glare film, a preparation method thereof, and a display device using the anti-glare film. More specifically, the present invention relates to anti-glare films for the surfaces of various display devices, such as liquid crystal displays, plasma displays, rear projection displays, electroluminescent displays, CRT (cathode ray tube) displays, and The manufacturing method and the display device using the anti-glare film. Background technique [0002] Currently, in various display devices, such as liquid crystal displays, plasma displays, CRT displays, if external light from fluorescent lamps, etc. is reflected onto the surface, the visibility will be seriously affected. Therefore, a method is used to reduce reflection by forming an optical multilayer film or a low refractive index film on the surface of the display device, or to diffusely reflect external light by forming an anti-glare film with fine irregularities on the surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02B32B27/20G02F1/1335
CPCG02B5/0278G02B5/0226G02F1/133502Y10T428/24595Y10T428/24372Y10T428/24521Y10T428/25G02B5/02B32B27/20G02F1/1335
Inventor 长浜勉芳贺友美渡边仁松村伸一
Owner SONY CORP
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