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Film light filter for preventing glass from cracking, and plasma display

A plasma and optical filter technology, applied in glass/slag layered products, film/flaky adhesives, gas discharge tubes/containers, etc. Issues such as weight and cost are not resolved

Inactive Publication Date: 2002-12-25
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this proposal, since a hard and thick glass or acrylic substrate is used as the transparent protective substrate, it is difficult to fix the transparent protective substrate to the plasma display panel through the transparent sheet
When glass substrates are used as transparent protective substrates, the problems of weight and cost of glass substrates remain unsolved
In addition, since the impact resistance is judged by the impact force (about 0.0294J) applied when a steel ball weighing 3g is dropped from a height of 1m, it cannot be said with certainty that the impact resistance is sufficient
Another problem that exists is that the transparent protective substrate cannot be easily removed, even when the transparent protective substrate needs to be removed by peeling again for recycling when disposing of the display

Method used

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  • Film light filter for preventing glass from cracking, and plasma display
  • Film light filter for preventing glass from cracking, and plasma display
  • Film light filter for preventing glass from cracking, and plasma display

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Add 100 parts of 2-ethylhexyl acrylate and 0.1 part of 2,2-diphenyl-2-methoxy Acetophenone (photopolymerization initiator) was polymerized by irradiation with ultraviolet light, thereby obtaining a viscous liquid of 10% by weight of a polymerized polymer-monomer mixture, and in this viscous liquid, 0.2 parts of trimethylolpropane triacrylic acid was added ester (internal crosslinking agent) and 0.1 part of 2,2-dimethoxy-2-phenylacetophenone (photopolymerization initiator) to prepare a photopolymerizable composition.

[0046] The photopolymerizable composition was applied to a 50 μm thick polyester separator and passed through a 2000 mj / cm 2UV irradiation to form a 1mm thick acrylic pressure sensitive adhesive base layer. The base layer was used as a single-layer structure type glass crack prevention layer, so that a 0.1 mm thick antireflection film ("Realook A-1200" produced by NOF Corporation) was bonded to one surface of the base layer, thereby producing a glass crac...

example 2

[0048] A glass-crack-preventing film-like filter was produced in the same manner as in Example 1, except that the coating thickness of the photopolymerizable composition was changed so that the thickness of the glass-crack-preventing layer made of an acrylic pressure-sensitive adhesive was 2 mm .

example 3

[0050] A glass-crack-preventing film-like filter was produced in the same manner as in Example 1, except that the coating thickness of the photopolymerizable composition was changed so that the thickness of the glass-crack-preventing layer made of an acrylic pressure-sensitive adhesive was 3 mm .

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Abstract

The present invention discloses a film-like optical filter for preventing glass cracks, which has a glass crack preventing layer exhibiting a dynamic elastic modulus of less than 6×106 Pa at 20° C. and a layer laminated on one surface of the glass crack preventing layer. The second surface of the antireflection film while preventing glass cracking layer is set as the bonding surface. Also disclosed is a plasma display, comprising a plasma display panel and the above-mentioned film-shaped filter for preventing glass cracks, the filter passing through the glass crack-preventing film contained in the film-shaped filter for preventing glass cracks The adhesive surface of the layer is directly attached to the viewing side of the plasma display panel.

Description

technical field [0001] The present invention relates to a film filter for preventing glass cracks and a plasma display using the film filter for preventing glass cracks. Background technique [0002] Such as image 3 As shown, the prior art plasma display includes a plasma display panel 31 , a spacer 32 , a transparent front plate 33 , and a case 34 . A transparent front panel 33 is made of glass about 3 mm thick and is placed on the visible side of the plasma display panel 31 through the gap 320 formed by the spacer 32 . The case 34 accommodates the plasma display panel 31, the spacer 32, and the transparent front plate 33 therein. Since the transparent front panel 33 is disposed through the gap 320 in this manner, external impact can be prevented from directly acting on the plasma display panel 31, and heat generated in the plasma display panel 31 can be restricted from being conducted to the transparent front panel 33. [0003] However, there is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/02B32B7/06B32B17/10C03C17/32C03C17/34C03C17/42C09J7/02C09J133/06G09F9/00H01J11/44H04N5/66
CPCB32B7/06B32B17/10018C03C17/3405C03C17/42H01J11/44B32B7/02C03C17/32H01J9/24B32B7/12
Inventor 森本雄一宫内和彦稗田嘉弘安积由起子中村年孝
Owner NITTO DENKO CORP
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