Electroresponsive Dual Functional Display Device Enabling Both Emissive and Reflective Modes by Combining Electrochemiluminescent and Liquid Crystal Materials

A novel electroresponsive multifunctional display device enabling control of both emission and transmittance was successfully fabricated. The device consisted of a liquid crystal-based electrolyte solution containing an electrochemically active luminescent material. Yellow electrochemiluminescence was observed from the device under application of alternating current voltage; modulation of its transmittance was also achieved when direct current voltage was applied to the device.