Editorial: Modeling and Applications of Optoelectronic Devices for Access Networks

Zhang, Chongfu; Yi, Zichuan; Rooij, Nico de; Zhou, Guofu; Gravina, Raffaele

doi:10.3389/fphy.2021.678269

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…The principle of EWDs is based on the movement of colored oil droplets by applying an external voltage [19][20][21]. Its essence is an optical switch [22].…”

Section: Principles Driving Principle Of Ewdsmentioning

confidence: 99%

Design Method of Equivalent Driving Waveform Based on Electrowetting Response Characteristics

Tian

2021

Front. Phys.

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As a new reflective display technology, electrowetting displays (EWDs) have many important characteristics, such as high reflectivity, low power consumption, and paper-like display. However, the contact angle hysteresis, which is the inconsistency between the advancing contact angle and the receding contact angle of oil droplet movement, seriously affects the response speed of EWDs in the driving process. According to the hysteresis phenomenon of contact angle in an oil switch motion with the action of interface tension, the brightness curve of EWDs in the process of pixel switching by different driving voltages was tested in this paper, and driving voltage was changed from 30 to 100 V at the same time. Then, in order to reduce the influence of the hysteresis effect, an equivalent driving waveform design method with overdriving voltage was proposed, and the overvoltage was set to 100 V according to the hysteresis effect and driving characteristic of EWDs. Experimental results showed that the response rising time of EWDs was reduced to 21 ms by using the proposed driving waveform, and the response performance of EWDs can be effectively improved.

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“…The principle of EWDs is based on the movement of colored oil droplets by applying an external voltage [19][20][21]. Its essence is an optical switch [22].…”

Section: Principles Driving Principle Of Ewdsmentioning

confidence: 99%

Design Method of Equivalent Driving Waveform Based on Electrowetting Response Characteristics

Tian

2021

Front. Phys.

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“…Electronic paper is a very promising optoelectronic device [1][2][3][4][5], in which electrophoretic display (EPD) is a reflective display technology based on the principle of electrophoresis. The color alternating display is realized by the movement of charged nanoparticles between electrodes under the action of an electric field [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Novel Modification of Copper (II) Phthalocyanine Particles towards Electrophoretic Displays

et al. 2022

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Electrophoretic display (EPD) is a popular display technology in recent years. The core of the EPD is electrophoretic particles, and its Zeta potential has an important impact on EPDs. In this work, a method using pyrrolidine mono ionic liquid was proposed to improve the Zeta potential of electrophoretic particles: Copper (II) phthalocyanine pigment was modified with mono ionic liquid 1-Butyl-1-methylpyrrolidinium bromide. The characterization results show that the mono ionic liquid had been successfully coated on pigment particles. At the same time, the dispersion and stability of particles were improved. The modified Copper (II) phthalocyanine pigment could be stably dispersed in tetrachloroethylene for more than 20 days. The Zeta potential increased from 32.42 mV to 49.91 mV, increasing by 53.95%. Finally, the prepared blue electrophoretic particles were compounded with white titanium dioxide to prepare blue and white dual-color electrophoretic dispersion, and then an EPD cell was designed to test its performance. The results show that the prepared electrophoretic dispersion can realize reversible reciprocating motion. Therefore, because of the unique structure and properties of pyrrolidine mono ionic liquids, the blue nanoparticles prepared with pyrrolidine ionic liquids as charge control agents in this study can be used as excellent candidate materials for EPD.

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Effect of dopant on the energy bandgap on strontium sulphide doped silver for optoelectronic application

Samuel,

James,

J. T.

et al. 2023

Materials Research Innovations

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Editorial: Modeling and Applications of Optoelectronic Devices for Access Networks

Cited by 4 publications

References 13 publications

Design Method of Equivalent Driving Waveform Based on Electrowetting Response Characteristics

Design Method of Equivalent Driving Waveform Based on Electrowetting Response Characteristics

A Novel Modification of Copper (II) Phthalocyanine Particles towards Electrophoretic Displays

Effect of dopant on the energy bandgap on strontium sulphide doped silver for optoelectronic application

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