Electrochromic display device

• Main Authors: FUJIMURA KOH, YASHIRO TOHRU, NAIJO YOSHIHISA, TSUJI KAZUAKI, KIM SUKCHAN, TAKAHASHI HIROYUKI, HIRANO SHIGENOBU, OKADA YOSHINORI
• Format: Patent
• Language: English
• Published: 20.01.2015
• 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

An electrochromic display device includes an electrochromic display element including a display electrode, an electrochromic layer provided on the display electrode, an opposing electrode facing the display electrode, and an electrolyte layer sandwiched between the display electrode and the opposing electrode. The electrochromic display device further includes a switching element, and a electric storage element. The display electrode is connected with the opposing electrode by a power source or the electric storage element via the switching element, and when performing driving, part of electric charges, which are stored in the electrochromic display element, are applied for charging the electric storage element, or electric charges in the electric storage element that has been charged are used for driving the electrochromic display element.