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Surface material for display and display with the same

A technology for surface materials and displays, which is applied to devices for coating liquid on the surface, electronic equipment, special surfaces, etc. It can solve the problems that the coating is not suitable for actual use and cannot meet the visibility of the display surface, etc., and achieve excellent visual Sexuality, inhibition of fingerprints, and effects of avoiding liquid droplets

Inactive Publication Date: 2007-01-31
NOF CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the surface treatment agent described in Patent Document 1 has the advantage of being easy to wipe off fingerprints, it cannot completely repel (spring) the lipid that is the main component of fingerprints, and the stains are obvious due to the adhesion of fingerprints. There is a problem that the treatment agent cannot satisfy the visibility (recognizability) of the display surface at a practical level
On the other hand, in the case of using the stain-preventing coating film described in Patent Document 2, the lipids that form fingerprints adhere to the coating film and then diffuse, and it takes a long time until the lipids are not conspicuous.
Therefore, the conspicuous dirt-preventing coating has a problem of being unsuitable for practical use

Method used

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  • Surface material for display and display with the same
  • Surface material for display and display with the same
  • Surface material for display and display with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Aluminum sec-butoxide [Al(O-sec-Bu) 3 ], isopropanol [IPA] and ethyl acetoacetate [EAcAc] were mixed and stirred. Further, add the mixed solution of water and Virahol, the molar ratio of said substance is as follows: Al(O-sec-Bu) 3 :IPA:EAcAc:H 2 O=1:10:1:4, stirred at room temperature for about 1 hour to prepare alumina sol.

[0092] Use the obtained alumina sol solution to dip-coat, further dry, and use a polyethylene terephthalate (PET) substrate with a thickness of 100 μm as the transparent substrate 11, on which to fabricate Aluminum oxide layer. Next, the aluminum oxide layer was immersed in warm water adjusted to have an electrical conductivity of 1.5 μs / cm at 60° C. for 1 hour, and then dried in an oven at 150° C. to obtain the uneven layer 13 . The thickness of the concavo-convex layer 13 is 200 nm.

[0093] The arithmetic average roughness (Ra) and the average interval (Sm) between the concavities and convexities of the surface of the concavo-convex layer...

Embodiment 2

[0095] As the transparent base material 11, except having used a glass substrate instead of a PET film, film formation was performed by the same operation as Example 1, the surface material 10 for displays was manufactured, and the touch panel 20 was further manufactured. The thickness, Ra, and Sm of the formed concavo-convex layer 13 were 210 nm, 38 nm, and 340 nm, respectively. In addition, for the surface material 10 for a display, the fingerprint visual evaluation and the measurement of the total light transmittance and the haze value were performed, and these results are shown in Table 1.

Embodiment 3

[0096] (Example 3: Forming a hard coating layer as a functional layer 15 between the transparent substrate 11 and the uneven layer 13)

[0097] As a hardening coating solution, it is prepared as follows: 70 parts by mass of dipentaerythritol hexaacrylate, 20 parts by mass of tetramethylolmethane triacrylate, 10 parts by mass of 1,6-bis(3-acryloyloxy 2-hydroxypropyloxy)hexane, 4 parts by mass of a photopolymerization initiator (trade name: IRGACURE184, manufactured by Chiba Gaigi Co., Ltd.), and 100 parts by mass of isopropanol were mixed to prepare the mixture. Hard coating fluid. This hard coat solution was applied on a PET film with a thickness of 100 μm by a bar coater so that the thickness of the dried film was about 4 μm, and irradiated with 400 mJ by a 120 W high-pressure mercury lamp using an ultraviolet irradiation device (manufactured by Iwasaki Electric Co., Ltd.) UV rays are used to cure and produce hard-coated PET films. Except having used this hard-coated PET fi...

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Abstract

The invention provides a surface material for display and a display equipped with the same, capable of obtaining excellent visibility since an adhering fingerprint becomes indistinguishable quickly. The surface material for display 10 is used and arranged in a surface of the display. On a surface of a transparent base material 11 for composing the surface material for display 10, a surface of an uneven layer 13 provided on the transparent base material 11, or a surface of a cover layer 16 on the uneven layer 13, arithmetic average roughness Ra specified in Japanese Industrial Standards B 0601-1994 is set to be 20 to 200nm and an average interval Sm between concave and convex points is set to be 5 to 600nm. Moreover, a fluorine atom is not contained in the uneven layer 13 or the cover layer 16, or a content of the fluorine atom is less.

Description

technical field [0001] The present invention relates to the surface material for the display that is arranged on the surface of the display (display device) such as automatic cash deposit and withdrawal machine (ATM, Automatic Teller Machine), automatic cash withdrawal machine (CD, Cash Dispenser), navigation device, etc. Display of surface materials. Background technique [0002] Conventional information terminals such as automatic cash deposit and withdrawal machines, automatic cash withdrawal machines, automatic vending machines, navigation devices, security system terminals, and personal computers are equipped with displays at input and output positions. However, when these information terminals are used, they are operated by touching the surface of the display with fingers, so fingerprints (hereinafter simply referred to as "fingerprints") produced by lipid components derived from living organisms such as sebum adhere to the surface On the other hand, the fingerprint c...

Claims

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Application Information

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IPC IPC(8): B32B33/00G06F3/041B05D5/08
CPCB32B3/30B32B9/00B32B38/08B32B2264/102B32B2307/412B32B2457/20G06F3/045
Inventor 疋田真也益子真司中村哲也
Owner NOF CORP
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