Reflecting type whole solid paper loading electrochromism device and preparation method thereof

An electrochromic device, electrochromic layer technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of image blur, pixel display leakage, dispersion, etc., achieve low cost, improve contrast, overcome crosstalk phenomenon Effect

Inactive Publication Date: 2007-04-18
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, due to the high sensitivity of electrochromic materials to small current and voltage, problems such as "crosstalk phenomenon" and "pixel discreteness" will appear in the process of fixed-point display and addressing display, which will cause pixel display leakage and blurred images
Although the international patent PCT / US2002 / 008594 applied by Dow Global Technology Corporation of the United States and the US patents US 4,129,861, US 4,488,781, and US 5,189,549 previously applied by other companies are trying to overcome or solve the problems of "crosstalk phenomenon" and "pixel discrete", But it often increases the cost and complexity of electrochromic devices, and it is difficult to completely overcome these technical obstacles

Method used

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  • Reflecting type whole solid paper loading electrochromism device and preparation method thereof

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Embodiment 1

[0024] Viologen derivatives 1-ethyl-1'-(4-(4'-vinyl)benzyl)-4,4'-bipyridyl iodide chloride quaternary with styrene, acrylic acid, butyl acrylate Copolymer, ethanol, polyvinylpyrrolidone (PVP) are formulated into a suspension, evenly coated on both sides of ordinary white paper cut to match the size of the ITO conductive glass substrate, and baked under vacuum to remove the solvent to obtain Paper-borne electrochromic layer d. Place the prepared PEO derivative-PMMA-LiClO on the electrode side of a piece of ITO conductive glass ab 4 Gel type polyelectrolyte ion conductor layer c. On the electrode side of another ITO conductive glass gh, use magnetron sputtering to make a NiO ion storage layer f, and then place the PEO derivative-PMMA-LiClO 4 Gel type polyelectrolyte ion conductor layer e. Place the paper-supported electrochromic layer d between the two ion conductor layers c and e, and press them tightly. Finally, the side surface of the obtained (abcdefgh) layer is sealed a...

Embodiment 2

[0026] The viologen polycondensate, acetonitrile, and polyvinylpyrrolidone (PVP) prepared by condensation of viologen derivative 4,4′-bipyridine and chloroethyl chloroacetate was prepared into a suspension, and evenly coated on the cut-out and ITO The two sides of the ordinary white paper whose size is matched to the conductive glass substrate are baked under vacuum to remove the solvent, forming the paper-borne electrochromic layer d. Place the prepared PEU derivative-LiClO on the electrode side of a piece of ITO conductive glass ab 4 Gel type polyelectrolyte ion conductor layer c. On the electrode side of another ITO conductive glass gh, TiO was fabricated by sol-gel spin coating method 2 Ion storage layer f, and then placed on the PEU derivative-LiClO 4 Gel type polyelectrolyte ion conductor layer e. Place the paper-supported electrochromic layer d between the two ion conductor layers c and e, and press them tightly. Finally, the side surface of the obtained (abcdefgh) ...

Embodiment 3

[0028] Viologen derivative bromide 1-phosphonic acid ethyl 1′-ethyl-4,4′-bipyridyl, acetonitrile, polyvinylpyrrolidone (PVP) prepared into a suspension, evenly coated on the cut into The two sides of ordinary white paper matching the size of the ITO conductive glass substrate are baked under vacuum to remove the solvent, forming the paper-borne electrochromic layer d. Place the prepared epichlorohydrin-dichloromethane-PEO-LiClO in the presence of KOH on the electrode side of a piece of ITO conductive glass ab 4 Gel type polyelectrolyte ion conductor layer c. On the electrode side of another ITO conductive glass gh, the polyaniline ion storage layer f made by electropolymerization is placed, and the -PEO-LiClO treated with epichlorohydrin-dichloromethane in the presence of KOH is placed. 4 Gel type polyelectrolyte ion conductor layer e. Place the paper-supported electrochromic layer d between the two ion conductor layers c and e, and press them tightly. Finally, the side sur...

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Abstract

The invention relates to reflecting type whole solid state electrochromism device with paper carrier material and the manufacturing method. The device includes paper carried electrochromism layer, ion conductor layer, ion storing layer, current-carrying electrode layer, and transparent glass base layer. It uses the paper carried electrochromism as main display thin film. Its two sides are tightly pressed with the ion conductor layer of which two sides are respectively set current carrying electrode layer and the transparent glass base layer. Each layer side is hermetically packaged and connected with electrode. The device can greatly increase device contrast, overcome 'cross talk', 'pixel dispersion', leakage, image blur etc, gain the electrochromic display with low cost, and lay stable foundation for merchandizing and popularity of the electrochromism type electronic ink and paper, color electrochromic display.

Description

technical field [0001] The invention relates to an electrochromic device, in particular to a reflective all-solid-state electrochromic device using paper as a carrier material. technical background [0002] Electrochromism (EC) refers to the phenomenon that the optical properties of materials produce stable and reversible changes under the action of an external electric field. In terms of appearance properties, it is manifested as reversible changes in color and transparency. As early as the 1930s, there were reports on the phenomenon of electrochromism. In 1969, S.K.Deb first used amorphous WO 3 Electrochromic devices made of thin films, and the "oxygen vacancy color center mechanism" was proposed. Since then, people have gradually realized the unique advantages and potential application prospects of electrochromism. Electrochromic materials and electrochromic devices have broad application prospects in the fields of photoelectric energy conversion, light intensity adjust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/15
Inventor 傅相锴蒋庆龙罗伟陈祝君
Owner SOUTHWEST UNIVERSITY
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