Anti-glare film, its preparation method and display device using the anti-glare 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, suppress white turbidity, improve surface roughness, and reduce protrusions Effect

Inactive Publication Date: 2012-02-22
SONY CORP
View PDF4 Cites 0 Cited by
  • 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

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, its preparation method and display device using the anti-glare film
  • Anti-glare film, its preparation method and display device using the anti-glare film
  • Anti-glare film, its preparation method and display device using the anti-glare film

Examples

Experimental program
Comparison scheme
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 disposed directly below the liquid crystal panel 2 . This liquid crystal panel 2 has an antiglare film 1 on its display side.

[0103] This light source 3 is used to supply light to the liquid crystal panel 4 and has, for example, a fluorescent lamp (FL), EL (Electro Luminescence), LED (Light Emitting Diode), or the like. The liquid crystal panel 2 is used for temporally and spatially adjusting the light provided by the light source 3 and displaying information. Polarizing plates 2 a and 2 b are provided on both surfaces of the liquid crystal panel 2 . Each of the polarizing plates 2a and 2b allows only one of the vertically crossing polarized light com...

no. 2 approach

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

[0158] Figure 4 An example of the configuration of the antiglare film 10 according to the second embodiment of the present invention is shown. In the antiglare film 10 , an antiglare layer 12 containing fine particles 13 is formed on a base material 11 , and a transparent resin layer 14 having translucency is formed on the antiglare layer 12 . The base material 11, the antiglare 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 utilizing convection and aggregation of the fine particles 13 is formed.

[0159] A transparent resin layer 14 is laminated onto the anti-glare layer 12 , which is a layer whose refractive index is smaller than that of the anti-glare layer 12 , for example, so as to reduce the reflectance of the surface. The transparent resin layer 14 is formed along the antiglare layer 12, for example, and ...

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 were separated by fine powder Classification is carried out by mechanical method, and the fine particles above 10μm are removed. The average diameter of the fine particles obtained after the classification process was equal to 6.3 μm, the median diameter was equal to 5.5 μm, and the coefficient of fluctuation was equal to 31%.

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

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

An antiglare film having a substrate and an antiglare layer formed on the substrate and containing fine particles. The anti-glare layer has fine concavo-convex shapes on its surface. The fine concavo-convex shape of the anti-glare layer is formed by coating the substrate with a paint containing fine particles and aggregating the fine particles by convection of the paint. The thickness of the antiglare layer is greater than or equal to the average diameter of the fine particles and less than or equal to three times the average diameter of the fine particles. The fine particles are substantially composed of fine particles having a particle diameter smaller than twice the thickness of the antiglare layer.

Description

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

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 Patents(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap