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Electrowetting system comprising conducting liquid with reliability

A technology of electrowetting system and electrolyte solution, which is applied in the field of electrowetting system and can solve the problems of not ensuring the reliability of electrolyte solution

Inactive Publication Date: 2007-04-25
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These electrowetting systems show improved optical properties at room temperature, but do not ensure the reliability of the electrolyte solution under temperature variations

Method used

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  • Electrowetting system comprising conducting liquid with reliability
  • Electrowetting system comprising conducting liquid with reliability
  • Electrowetting system comprising conducting liquid with reliability

Examples

Experimental program
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Embodiment Construction

[0020] The present invention will now be described in more detail.

[0021] FIG. 3 shows a state in which an electrolytic solution of a liquid lens moves when a voltage is applied to the liquid lens. A liquid lens consists of two immiscible solutions, namely, i) an electrolyte solution, which has electrical properties and functions to substantially operate the liquid lens; ii) a non-conductive oil or liquid (hereinafter, referred to as "insulating solution"), which The shape of is relatively changed according to the movement of the electrolytic solution, and the electrolytic solution and the insulating solution are separated by the interface formed therebetween to function as a lens.

[0022] The electrolyte solution of the electrowetting system according to the present invention includes a first salt, the molar mass of the first salt is 100 or less, and the solubility of the first salt in 100 g of water is 27 g or more.

[0023] In general, adding salt to water causes a chan...

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Abstract

Disclosed herein is an electrowetting system based on the electrowetting phenomenon. The electrowetting system comprises an electrolyte solution and optionally an insulating solution wherein the electrolyte solution includes a first salt having a molar mass of 100 or below and a solubility of 27 g or above in 100 g of water, a second salt (a chaotropic salt) containing an ion with a negative Jones-Dole coefficient (B), a third salt containing an ion with a Setschenow constant (ks) of 0.150 or above, and the salts are in the range of 10 to 30% by weight with respect to the total weight of the electrolyte solution. A mixture of the salts having different inherent characteristics is used as the electrolyte solution of the electrowetting system. Taking into consideration all factors, such as solubility, freezing point, changes in viscosity according to temperature variation and separation between the insulating solution and the electrolyte solution, the electrolyte solution satisfies reliability in terms of temperature variation.

Description

[0001] This application is based on and claims the benefit of priority from Korean Patent Application No. 2005-98493 filed on October 19, 2005, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to an electrowetting system. More particularly, the present invention relates to an electrowetting system using a conductive solution, wherein the type and concentration of salt contained in the conductive solution are adjusted to ensure the operability of the electrowetting system in the case of changes in the temperature of the conductive solution lower reliability. Background technique [0003] Electrowetting is a phenomenon in which the surface tension of a liquid is changed using the electric charge present at the interface of the liquid. The phenomenon of electrowetting can be used to handle microfluidics and microparticles present in liquids. A great deal of research has focused on products base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/02G02B3/12
CPCG02B3/14G02B26/004B81B3/0083G02B7/28G02B26/005
Inventor 裴宰英金钟允郑夏龙沈智慧
Owner SAMSUNG ELECTRO MECHANICS CO LTD