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Inkjet inks, microlenses, optical components and devices

A technology for inkjet inks and optical parts, applied in the field of inkjet inks, can solve the problems of increased production lead time, increased number of manufacturing steps, etc., and achieve the effect of good shape

Active Publication Date: 2018-05-01
JNC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the following problems in the formation of the microlens: the number of manufacturing steps is increased, and the production time (takt time) is increased.

Method used

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  • Inkjet inks, microlenses, optical components and devices
  • Inkjet inks, microlenses, optical components and devices
  • Inkjet inks, microlenses, optical components and devices

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0187] 1-8. Preparation method of ink

[0188] The ink of the present invention can be prepared by mixing the ingredients used as raw materials by a known method.

[0189] In particular, the ink of the present invention is preferably prepared by combining the (meth)acrylamide (A), cyclic (meth)acrylamide (B), and (meth)acrylic urethane (C) And a photoinitiator (D), and other components as needed are mixed, and the obtained solution is filtered and degassed, for example using a membrane filter (membrane filter). The ink prepared as described above has excellent ejection properties.

[0190] 1-9. Using inkjet method to apply ink

[0191] The ink of the present invention can be applied using a known inkjet method. Examples of the inkjet method include: a piezoelectric method in which mechanical energy is applied to the ink to eject the ink from an inkjet head, and a coating method in which thermal energy is applied to the ink to eject the ink (so-called thermal) the way).

[0192] By u...

Embodiment 1

[0224] Use HEAA (trade name; Koto Co., Ltd.) as N-(hydroxyethyl)acrylamide as (meth)acrylamide (A) and ACMO (trade name; Koto Co., Ltd. as N-acryloyl morphine) ) CN9893 as cyclic (meth)acrylamide (B) and (meth)acrylic urethane (C) (trade name; Sartomer Co., Ltd., bifunctional (meth)acrylic urethane) Ester), and as oxy-phenyl-acetic acid-2-[2-oxo-2-phenyl-acetoxy-ethoxy]-ethyl ester and oxy-phenyl-acetic acid-2-[2 -Hydroxy-ethoxy]-ethyl ester mixture of IRGACURE754 (trade name; BASF Corporation, hereinafter referred to as "Ir754") as the photopolymerization initiator (D), mixed in the following composition ratio, and completely dissolved After that, filtration was performed with a membrane filter (0.2 μm) made of ultra-high molecular weight polyethylene (UPE) to obtain a filtrate (ink 1).

[0225] (A)HEAA 10.00g

[0226] (B)ACMO 78.00g

[0227] (C)CN9893 12.00g

[0228] (D)Ir754 7.00g

[0229] Using an E-type viscometer (TV-22 of Toki Sangyo Co., Ltd., the same below), the viscosity ...

Embodiment 2

[0231] KAYARAD UXE-1000 (trade name; Nippon Kayaku Co., Ltd., 4-functional (meth)acrylate urethane. Hereinafter referred to as "UXE-1000") was used as (meth)acrylate urethane (C) Except for the following ratios, the same procedure as in Example 1 was carried out to prepare ink 2.

[0232] (A)HEAA 10.00g

[0233] (B)ACMO 78.00g

[0234] (C)UXE-1000 12.00g

[0235] (D)Ir754 7.00g

[0236] Using an E-type viscometer, the viscosity of the ink 2 at 25°C was measured to be 48 mPa·s.

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Abstract

An inkjet ink, a microlens, an optical component and a device are provided. An inkjet ink that can form a microlens having a good shape even without conducting a surface treatment on a substrate is provided. The inkjet ink includes a (meth)acrylamide (A) represented by the following formula (1), a cyclic (meth)acrylamide (B) represented by the following formula (2), an urethane methacrylate (C) and a photopolymerization initiator (D).

Description

Technical field [0001] The present invention relates to an inkjet ink that is suitably used in the manufacture of a light guide plate as a component of a backlight unit built into an optical device such as an image display device, and more particularly to an inkjet ink even if the surface treatment of the substrate is not performed. An inkjet ink that can form microlenses with good shapes. Background technique [0002] In the past, microlenses formed on light guide plates for image display devices were formed by injection molding using a mold. However, when using this method to manufacture a small amount of a wide variety of microlenses, it is necessary to re-create the mold each time the product is designed, and an increase in the number of manufacturing steps becomes a problem. [0003] In recent years, as a manufacturing method with high design freedom, a method of directly forming microlenses on the surface of a substrate using an inkjet method has been performed (for example,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/30G02B3/00
CPCB41J2/17C09D11/38G02B1/04G02B3/0012G02F1/133526
Inventor 中原铁舟杉原克幸
Owner JNC CORP