Transparent conductive glass substrate

A transparent conductive glass and glass substrate technology, applied to the conductive layer, conductor, circuit, etc. on the insulating carrier, can solve the problems of thick glass and no flexibility

Active Publication Date: 2013-07-03
SHIN-ETSU POLYMER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, sputtering or dispersion coating of ITO, which is a transparent conductive material,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0129] Hereinafter, referring to Table 1, Examples 1 to 4 and Comparative Examples 1 to 3 of the present invention will be described.

[0130] (preparation of materials)

[0131] [1] Preparation of polystyrenesulfonic acid

[0132] 206 g of sodium styrene sulfonate was dissolved in 1000 ml of ion-exchanged water, and a solution in which 1.14 g of ammonium persulfate oxidizing agent had previously been dissolved in 10 ml of water was added dropwise at 80°C with stirring for 20 minutes, and the solution was stirred for 2 hours. 1,000 ml of sulfuric acid diluted to 10% by mass and 10,000 ml of ion-exchanged water were added to the sodium styrene sulfonate-containing solution thus obtained, and about 10,000 ml of the solution was removed by ultrafiltration. The above ultrafiltration operation was repeated three times. Furthermore, about 10,000 ml of ion-exchanged water was added to the obtained filtrate, and 10,000 ml of the solution was removed by ultrafiltration. This ultrafi...

experiment example 1

[0158] In 600 g of the PEDOT-PSS aqueous solution obtained in [2], 3.6 g of methyl gallate, 0.9 g of Irgacure 127 (manufactured by Ciba Seika Co., Ltd.), 20 g of dimethyl sulfoxide, 2.5 g of hydroxyacrylate, and 7.2 g of pentaerythritol were mixed Triacrylate and 300 g of ethanol were stirred to obtain a conductive polymer solution A.

[0159] Using the IS-7900IL-NSC slit coater manufactured by Innext, according to the nozzle gap of 150 μm, the coating speed of 20 mm / sec, the working distance of 100 μm, and the coating flow rate of 0.11 ml, the glass substrate obtained by [3] Conductive polymer solution A was coated on one side of the surface, dried by infrared irradiation at 100°C for 2 minutes, and then subjected to ultraviolet light (high-pressure mercury lamp 120W, 500mJ / cm 2 、178mW / cm 2 ) is irradiated and hardened to form a conductive coating film. The surface resistance, light transmittance, pencil hardness of the conductive coating film, and the flexibility of the tr...

Embodiment 2

[0161] In 600 g of the PEDOT-PSS aqueous solution obtained in [2], 3.6 g of methyl gallate, 0.9 g of Irgacure 127 (manufactured by Ciba Specialty Chemicals), 20 g of dimethyl sulfoxide, and 9.2 g of diethylene glycol diglycidyl Ether, 0.2 g of 2-methylimidazole, 250 g of ethanol, and 50 g of ethylene glycol were stirred to obtain a conductive polymer solution B.

[0162] Using the IS-7900IL-NSC slit coater manufactured by Innext, according to the nozzle gap of 150 μm, the coating speed of 40 mm / sec, the working distance of 100 μm, and the coating flow rate of 0.3 ml, the glass substrate obtained by [3] The conductive polymer solution B was coated on one side of the substrate, and dried by irradiating infrared rays at 120° C. for 2 minutes to harden it, thereby forming a conductive coating film. The surface resistance, light transmittance, pencil hardness of the conductive coating film and the flexibility of the transparent conductive glass substrate were measured.

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Abstract

To provide a flexible transparent conductive glass substrate having flexibility similar to a plastic substrate, achieving hardness and transparency not found in plastics, and having adherence that can withstand use with a curved surface. [Solution] A transparent conductive glass substrate having a conductive polymer layer on at least one surface of a thin glass substrate, and having a surface resistance of 1.8 GO/sq or less, total light transmittance of 85% or greater, surface pencil hardness of H or greater, and no failure with bending of a radius of 25 mm is manufactured. Furthermore, a conductive polymer application forming the conductive polymer layer contains a conductive polymer and polyanions and also contains one or a plurality selected from a group that includes binders, curing agents, conductivity increasing agents, surface active agents, catalysts, and agents for improving adhesion.

Description

technical field [0001] The invention relates to a transparent conductive glass substrate. Background technique [0002] A transparent conductive film in which conductive ceramics such as ITO (indium tin oxide) is sputtered on a glass substrate is currently used in many electronic components. However, ITO has the problem of depletion of indium as a raw material and high price, so it is looking for alternatives to other conductive materials. In addition, from the perspective of design and function, there is a technical desire for a soft substrate with flexibility compared to the conventional hard substrate. . [0003] For this reason, attempts have been made to coat a dispersion of metal nanoparticles on a film substrate, or to coat a transparent conductive polymer or the like on various plastic substrates (for example, see Patent Document 1). ITO, which has been conventionally used for glass substrates, has no flexibility, and as a substitute for these substances, the above...

Claims

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Application Information

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IPC IPC(8): H01B5/14G02F1/1333H01B13/00
CPCG02F1/133305G02F2202/022G02F2202/09G02F1/00G02F1/1333H01B5/00H01B5/14H01B13/00
Inventor 谷口敦吉田一义藤木弘直西山荣竹内一马羽鸟宏隆
Owner SHIN-ETSU POLYMER CO LTD
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