ArticleMicromachines2021
A Separated Reset Waveform Design for Suppressing Oil Backflow in Active Matrix Electrowetting Displays.
Article in Micromachines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Optimization of Overdriving Pulse for Luminance Stability of Electrowetting Displays.Micromachines · 2025Article
- Optimized Driving Scheme for Three-Color Electrophoretic Displays Based on the Elimination of Red Ghost Images.Micromachines · 2024Article
- Optimizing Bipolar Reset Waveform to Improve Grayscale Stability in Active Matrix Electrowetting Displays.Micromachines · 2024Article
- High-Performance Multi-Level Grayscale Conversion by Driving Waveform Optimization in Electrowetting Displays.Micromachines · 2024Article
- Research on Hydrodynamic Characteristics of Electronic Paper Pixels Based on Electrowetting.Micromachines · 2023Article
- Stability Study of Multi-Level Grayscales Based on Driving Waveforms for Electrowetting Displays.Micromachines · 2023Article
- Editorial for the Special Issue on Advances in Optoelectronic Devices.Micromachines · 2023Article
- Design, Fabrication and Measurement of Full-Color Reflective Electrowetting Displays.Micromachines · 2022Article
- Toward Suppressing Charge Trapping Based on a Combined Driving Waveform with an AC Reset Signal for Electro-Fluidic Displays.Membranes · 2022Article
- Dynamic Adaptive Display System for Electrowetting Displays Based on Alternating Current and Direct Current.Micromachines · 2022Article
- Toward Suppressing Oil Backflow Based on a Combined Driving Waveform for Electrowetting Displays.Micromachines · 2022Article
- A Fast-Response Driving Waveform Design Based on High-Frequency Voltage for Three-Color Electrophoretic Displays.Micromachines · 2021Article
- Article
- Design of Driving Waveform for Shortening Response Time of Black Particles and White Particles in Three-Color Electrophoretic Displays.Micromachines · 2021Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
The electrowetting display (EWD) is a kind of reflective paper-like display. Flicker and grayscale distortion are caused by oil backflow, which is one of the important factors restricting the wide application of EWDs. The charge embedding caused by the electric field force in the dielectric layer is the cause of oil backflow. To suppress oil backflow, a separated reset waveform based on the study of oil movement is proposed in this paper. The driving waveform is divided into two parts: a reset waveform and a grayscale waveform. The reset waveform generated by a reset circuit can be used to output various voltages. The grayscale waveform is set as a traditional PWM waveform. The reset waveform is composed of a charge-releasing stage and oil-moving back stage. Two phases are contained in the charge releasing stage. The overdriving voltage is used during the first phase to reverse the voltage of all pixels. The trapped charges can then be released from the dielectric layer during the second phase. A higher voltage is used during the oil-moving back stage to drive the oil faster in the pixel. By comparing the experimental data, the oil backflow time is extended 761 times by the reset waveform. The four grayscales can be maintained by the reset waveform after driving for 300 s.
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Registered trials
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