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

Hard-coated antiglare film, polarizing plate and image display including the same

An anti-glare and hard-coating technology, which is applied to polarizing elements, coatings, nonlinear optics, etc., can solve the problems of reducing anti-glare hard-coated films and image quality deterioration, and achieve glare suppression, improved visibility, and display Excellent effect

Inactive Publication Date: 2011-04-27
NITTO DENKO CORP
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the haze value of the hard-coated anti-glare film is reduced, the brightness unevenness existing in the pixels constituting the display is further strengthened, causing visual failure (glare failure), and there is a problem that image quality deteriorates

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
  • Hard-coated antiglare film, polarizing plate and image display including the same
  • Hard-coated antiglare film, polarizing plate and image display including the same
  • Hard-coated antiglare film, polarizing plate and image display including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0159] Preparation of a hard coat forming material (JSR Co., Ltd. product, brand name "OPSTAR Z7540", solid content: 56% by weight, solvent: butyl acetate / methyl ethyl ketone (MEK)=76 / 24 (weight ratio)). The above-mentioned hard coat forming material contains (A) component dipentaerythritol and isophorone diisocyanate-based polyurethane, and (B) component in a weight ratio of total (A) component: (B) component = 2:3. It is silica particles whose surface is modified by organic molecules (weight average particle diameter is less than 100nm). The refractive index of the cured film of the above hard coat layer forming material was 1.485. 6 parts by weight of acrylic acid and styrene crosslinked particles (manufactured by Sekisui Chemical Industry Co., Ltd., trade name "TECHPOLYMER SSX1055QXE", weight average Particle diameter: 5.5 μm, refractive index: 1.515) as the above-mentioned fine particles, 0.1 part by weight of a leveling agent (manufactured by DIC Corporation, trade nam...

Embodiment 2

[0163] In addition to using silicone fine particles (manufactured by Momentive Performance Materials, trade name "Tospearl 145", weight-average particle diameter: 4.5 μm, refractive index: 1.425) as the above-mentioned fine particles, and forming it per 100 parts by weight of the above-mentioned hard coat layer The antiglare hard-coat film of Example 2 was obtained in the same manner as in Example 1, except that 5 parts by weight were mixed in the resin solid content of the material.

Embodiment 3

[0165] In addition to mixing 10 parts by weight of the same acrylic acid and styrene crosslinked particles as in Example 1 per 100 parts by weight of the resin solid content of the same hard coat layer forming material as in Example 1, the same method as in Example 1 was used. Method, obtained the antiglare property hard coat film of embodiment 3.

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
surface roughnessaaaaaaaaaa
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A hard-coated antiglare film that has superior antiglare properties, and reflection properties even when a haze value is low, and can improve the depth of black in black display by preventing 'tinting' occurs specifically when a reflection is reduced, a polarizing plate, and the like. The film has a reflection intensity ratio of 3 or less, a hard-coating antiglare layer containing fine particles, and an antireflection layer. A surface of the antireflection layer has an uneven shape, and an average angle of inclination [theta]a and an arithmetic average surface roughness Ra in predetermined ranges. At the surface of the antireflection layer, convexities exceeding a roughness mean line of a surface roughness profile in a predetermined number range, and convexities exceeding a standard line that is in parallel with the mean line and is located at a height of 0.1 [mu]m in predetermined size and number ranges are included.

Description

technical field [0001] The present invention relates to an antiglare hard-coated film, a polarizing plate using the film, and an image display device. Background technique [0002] With the advancement of technology in recent years, as image display devices, in addition to the conventional cathode tube display (CRT), liquid crystal display (LCD), plasma display (PDP) and electroluminescent display (ELD) have also been developed. ), etc., and have been put into practical use. Among them, LCDs have been expanded to automotive applications such as mobile phones and car navigation displays, along with technological innovations related to wide viewing angles, high definition, high-speed responsiveness, and color reproducibility. In these uses, a further improvement in visibility is required. One of the reasons why sufficient visibility cannot be obtained is that there is interface reflection at the interface between the polarizing plate disposed on the outermost surface of the ...

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): G02B1/10G02B1/11G02B5/30G02F1/1335C09D7/12B32B7/02G02B1/115G02B1/14G02B1/18G02B5/02
CPCG02F1/133502G02F2201/50G02F1/133528G02B1/118G02B1/105G02F2202/28C09D7/005C09D7/42G02B1/14
Inventor 新纳铁平滨本大介
Owner NITTO DENKO CORP