Next Article in Journal
Transparent Microelectrode Arrays Fabricated by Ion Beam Assisted Deposition for Neuronal Cell In Vitro Recordings
Next Article in Special Issue
Dielectrophoretic Immobilization of Yeast Cells Using CMOS Integrated Microfluidics
Previous Article in Journal
Photocatalytic Nanofabrication and Intracellular Raman Imaging of Living Cells with Functionalized AFM Probes
Previous Article in Special Issue
Passive Dielectrophoretic Focusing of Particles and Cells in Ratchet Microchannels
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Micromachines
Volume 11
Issue 5
10.3390/mi11050498
micromachines-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Driving Waveform Design of Electrophoretic Display Based on Optimized Particle Activation for a Rapid Response Speed

by
Wenyao He
1,2,
Zichuan Yi
1,*,
Shitao Shen
2,
Zhenyu Huang
2,3,
Linwei Liu
2,3,
Taiyuan Zhang
2,3,
Wei Li
2,3,
Li Wang
2,3,
Lingling Shui
1,2,
Chongfu Zhang
1 and
Guofu Zhou
2,3
1
College of Electron and Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
2
Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
3
Shenzhen Guohua Optoelectronics Tech. Co., Ltd., Shenzhen 518110, China
*
Author to whom correspondence should be addressed.
Micromachines 2020, 11(5), 498; https://doi.org/10.3390/mi11050498
Submission received: 3 April 2020 / Revised: 2 May 2020 / Accepted: 13 May 2020 / Published: 14 May 2020
(This article belongs to the Special Issue Micromachines for Dielectrophoresis)
Browse Figures
Versions Notes

Abstract

Electrophoretic displays (EPDs) have excellent paper-like display features, but their response speed is as long as hundreds of milliseconds. This is particularly important when optimizing the driving waveform for improving the response speed. Hence, a driving waveform design based on the optimization of particle activation was proposed by analyzing the electrophoresis performance of particles in EPD pixels. The particle activation in the driving waveform was divided into two phases: the improving particle activity phase and the uniform reference grayscale phase. First, according to the motion characteristics of particles in improving the particle activity phase, the real-time EPD brightness value can be obtained by an optical testing device. Secondly, the derivative of the EPD brightness curve was used to obtain the inflection point, and the inflection point was used as the duration of improving particle activity phase. Thirdly, the brightness curve of the uniform reference grayscale phase was studied to set the driving duration for obtaining a white reference grayscale. Finally, a set of four-level grayscale driving waveform was designed and validated in a commercial E-ink EPD. The experimental results showed that the proposed driving waveform can cause a reduction by 180 ms in improving particle activity phase and 120 ms in uniform reference grayscale phase effectively, and a unified reference grayscale can be achieved in uniform reference grayscale phase at the same time.
Keywords: electrophoretic display; driving waveform; particle activation; response speed; reference grayscale electrophoretic display; driving waveform; particle activation; response speed; reference grayscale

Share and Cite

MDPI and ACS Style

He, W.; Yi, Z.; Shen, S.; Huang, Z.; Liu, L.; Zhang, T.; Li, W.; Wang, L.; Shui, L.; Zhang, C.; et al. Driving Waveform Design of Electrophoretic Display Based on Optimized Particle Activation for a Rapid Response Speed. Micromachines 2020, 11, 498. https://doi.org/10.3390/mi11050498

AMA Style

He W, Yi Z, Shen S, Huang Z, Liu L, Zhang T, Li W, Wang L, Shui L, Zhang C, et al. Driving Waveform Design of Electrophoretic Display Based on Optimized Particle Activation for a Rapid Response Speed. Micromachines. 2020; 11(5):498. https://doi.org/10.3390/mi11050498

Chicago/Turabian Style

He, Wenyao, Zichuan Yi, Shitao Shen, Zhenyu Huang, Linwei Liu, Taiyuan Zhang, Wei Li, Li Wang, Lingling Shui, Chongfu Zhang, and et al. 2020. "Driving Waveform Design of Electrophoretic Display Based on Optimized Particle Activation for a Rapid Response Speed" Micromachines 11, no. 5: 498. https://doi.org/10.3390/mi11050498

APA Style

He, W., Yi, Z., Shen, S., Huang, Z., Liu, L., Zhang, T., Li, W., Wang, L., Shui, L., Zhang, C., & Zhou, G. (2020). Driving Waveform Design of Electrophoretic Display Based on Optimized Particle Activation for a Rapid Response Speed. Micromachines, 11(5), 498. https://doi.org/10.3390/mi11050498

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop