Ultra-High Transmission Electrowetting Displays Enabled by Integrated Reflectors
Authors:
- 23 May 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Display Technology
- Vol. 4 (2) , 120-122
Abstract
A reflector technique for increasing the transmission performance of a back-lit electrowetting display is presented. The electrowetting display pixel structure consists of an opaque oil film that blocks light transmission. Electrowetting with 5-10 V breaks up the oil film and creates a transmissive area for the pixel. With real-world electrowetting materials and device constraints, the transmissive area typically reaches 60% to 80% of the pixel area. By integrating a simple thin-film reflector between the backlight and the remaining oil film area, the effective transmission can be boosted to >90%. This high efficiency is promising for battery-powered applications and for high-brightness sunlight-legible displays.Keywords
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