ELECTROCHROMIC DEVICE, WEARABLE DEVICE, AND METHOD FOR DRIVING ELECTROCHROMIC DEVICE

• Main Authors: HASEGAWA TORU, YUTANI KEIICHIRO, YASHIRO TORU, URA NAOKI, KANEKO FUMINARI
• Format: Patent
• Language: English; Japanese
• Published: 01.10.2020
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide an electrochromic device that has high responsiveness in performing color developing and reducing driving, high uniformity of color optical density, and high strength and safety against an impact from the outside, is excellent in durability when being driven continuously for a long time, and can reduce power consumption.SOLUTION: An electrochromic device comprises: a first auxiliary electrode and a second auxiliary electrode that have an average distance therebetween of 100 mm or less; a first electrode; a second electrode; an electrochromic layer; a solid electrolyte layer; and control means that applies voltage in any one drive pattern of a first drive pattern, a second drive pattern, and an initialization drive pattern. The first drive pattern is a drive pattern for making the electrochromic layer into a first color developing state; the second drive pattern is a drive pattern for forming, from the first color developing state, a second color developing state in which the color optical density is lower than that in the first color developing state; the initialization drive pattern is a drive pattern for forming an initial color reducing state.SELECTED DRAWING: Figure 5A 【課題】発消色駆動を行う際の応答性及び発色濃度の均一性、並びに外部からの衝撃などに対する強度及び安全性が高く、長時間連続して駆動させる際の耐久性に優れるとともに消費電力を抑制できるエレクトロクロミック装置の提供。【解決手段】第一の補助電極と第二の補助電極との平均距離が１００ｍｍ以下であり、第一の電極、第二の電極、エレクトロクロミック層と、固体電解質層と、第一駆動パターン、第二駆動パターン、及び初期化駆動パターンの少なくともいずれかの駆動パターンにより電圧を印加する制御を行う制御手段とを備え、第一駆動パターンがエレクトロクロミック層を第一の発色状態にするための駆動パターンであり、第二駆動パターンが第一の発色状態から、第一の発色状態よりも発色濃度が低い第二の発色状態を形成するための駆動パターンあり、初期化駆動パターンが初期の消色状態を形成するための駆動パターンであるエレクトロクロミック装置。【選択図】図５Ａ