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67.3: Electrochemical Reaction Display with Dual Reflective and Emissive Modes
Author(s) -
Enomoto Shintaro,
Mizuno Yukitami,
Saito Nobuyoshi,
Kizaki Yukio,
Amemiya Isao,
Uchikoga Shuichi
Publication year - 2007
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2785688
Subject(s) - luminescence , electrochemistry , electrochromism , dual mode , materials science , electrolyte , electrode , electrochemical cell , optoelectronics , chemiluminescence , contrast ratio , photochemistry , optics , chemistry , physics , organic chemistry , engineering , aerospace engineering
We have developed an electrochemical reaction display (ECRD) that can be operated in dual reflective and emissive modes in an entire pixel area of a single device. The ECRD utilizes electrochromic (EC) and electrogenerated chemiluminescence (ECL) reactions. These two electrochemical reactions can be controlled independently by adding a luminescent molecule to a liquid electrolyte of an EC cell with three electrodes. In the reflective mode, the ECRD cell exhibits high reflectance (47%) and high contrast ratio (6:1). In the emissive mode, the cell can show luminescent moving images because of the fast response time (10 ms).